{"title":"Tekmar","description":"\u003cp\u003eShop 17 Tekmar replacement parts and controls at New England Supply House. We carry Tekmar components for heating, cooling, and building automation systems. In-stock inventory ships same day from Foxboro, MA — competitive contractor pricing on every order.\u003c\/p\u003e","products":[{"product_id":"tekmar-519-radiant-thermostat","title":"Tekmar 519 Radiant Thermostat","description":"\u003cdiv\u003e\n\u003cp\u003eTekmar 519 Radiant Thermostat is a programmable, digital thermostat designed for radiant heating systems. As a 1-Heat control, it uses a microprocessor to manage temperature with an NTC thermistor sensor for accurate readings.\u003c\/p\u003e\n\u003cp\u003eThis versatile unit operates on low voltage 10-30V AC or DC, with a current rating of 2 A. It delivers a balanced power profile—1.8 VA in standby and up to 56 VA when fully loaded—ensuring efficient performance in various setups.\u003c\/p\u003e\n\u003cp\u003eBuilt for reliability, the Tekmar 519 features a relay switch, a compact enclosure, and safety approvals. It is housed in white plastic with a NEMA 1 rating, sized at 3\" W x 15\/16\" D x 3-11\/16\" H, and carries FCC and ICES approvals for safe, compliant use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: Programmable, Digital, 1-Heat\u003c\/li\u003e\n\u003cli\u003eInput voltage: 10–30 V AC (50\/60 Hz) or 10–30 V DC\u003c\/li\u003e\n\u003cli\u003eOutput: Relay switch, 2 A\u003c\/li\u003e\n\u003cli\u003ePower draw: 1.8 VA (standby), 56 VA (fully loaded)\u003c\/li\u003e\n\u003cli\u003eEnclosure: White plastic, NEMA 1, 3\" W × 15\/16\" D × 3-11\/16\" H\u003c\/li\u003e\n\u003cli\u003eSensor: NTC thermistor\u003c\/li\u003e\n\u003cli\u003eApprovals: FCC, ICES\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Metropac","offers":[{"title":"Default Title","offer_id":47602010128606,"sku":"287968","price":118.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/00346205_13ba359d-206f-42e8-b49b-dd0cd73bbdef.jpg?v=1765822930"},{"product_id":"tekmar-256-boiler-control","title":"Tekmar 256 Boiler Control","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cb\u003eTekmar 256 Boiler Control\u003c\/b\u003e is a compact, microprocessor-based boiler control designed for precise indoor heating management. The \u003cb\u003eTekmar 256\u003c\/b\u003e provides reliable 1-stage boiler control with DIP switch programming for quick setup and dependable operation.\u003c\/p\u003e \u003cp\u003eOperates on \u003cb\u003e24 Volt AC\u003c\/b\u003e (50\/60 Hz) with 2 VA demand, and supports an indoor temperature range from 32 to 104°F. This unit includes a \u003cb\u003e10 kΩ NTC thermistor\u003c\/b\u003e at 77°F and an \u003cb\u003eoutdoor\/universal sensor\u003c\/b\u003e for flexible response to outdoor conditions. The enclosure is \u003cb\u003eNEMA 1\u003c\/b\u003e, white PVC, designed for indoor installations, and supports configurations from 1-zone to multiple-zone fan coil and baseboard systems. The unit is \u003cb\u003eUL\u003c\/b\u003e and \u003cb\u003eCAS\u003c\/b\u003e listed for safety and reliability.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e1-Stage microprocessor control with DIP switch programming\u003c\/li\u003e \u003cli\u003eIncludes 10 kΩ NTC thermistor (77°F)\u003c\/li\u003e \u003cli\u003eOutdoor\/Universal sensor included\u003c\/li\u003e \u003cli\u003eIndoor use; supports 1-zone to multiple-zone fan coil and baseboard\u003c\/li\u003e \u003cli\u003eNEMA 1, white PVC enclosure; UL\/CAS listed\u003c\/li\u003e \u003cli\u003e24 VAC input, 2 VA demand; relay rated 1\/6 HP at 240 VAC (5 A)\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned for reliable boiler control that simplifies setup while delivering precise temperature management across residential and light commercial heating systems.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Metropac","offers":[{"title":"Default Title","offer_id":47605713535198,"sku":"50851","price":234.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/00346064_b5face00-6caf-4a40-a912-d57f231cc74f.jpg?v=1765809096"},{"product_id":"tekmar-261-boiler-control","title":"Tekmar 261 Boiler Control","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cb\u003eTekmar 261 Boiler Control\u003c\/b\u003e is a microprocessor-based controller designed for indoor heating systems, delivering precise 2-stage boiler operation. With DIP switch programming and an outdoor\/universal sensor, this unit optimizes performance for boilers, baseboards, and fan coils, delivering efficient hot-water heating across varying loads.\u003c\/p\u003e \u003cp\u003eEngineered for reliable residential and light commercial use, it features a 120 Volt AC input (50\/60 Hz) with a rated 1300 Volt-Amp, and operates across a temperature range of 32 to 113°F. The system includes a 10 Kilo Ohm at 77°F NTC thermistor, an outdoor\/universal sensor, and a blue PVC NEMA 1 enclosure for indoor installations. It meets UL, CAS, ICES, and FCC standards for safe, compliant operation. The unit supports indoor applications for heating and cooling systems, including boilers, baseboards, and fan coils, with robust environmental tolerance up to 95% RH non-condensing.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e2-stage boiler control\u003c\/b\u003e with easy DIP switch programming\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutdoor\/universal sensor\u003c\/b\u003e compatibility for flexible placement\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e10 KΩ NTC thermistor\u003c\/b\u003e (77°F) for precise sensing\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIndoor applications\u003c\/b\u003e for boiler, baseboard, and fan coil systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNEMA 1 blue PVC enclosure\u003c\/b\u003e for durable indoor mounting\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUL\/CAS\/ICES\/FCC compliant\u003c\/b\u003e for North American safety\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eElectrical specs\u003c\/b\u003e: 120 V input, 20–260 VAC demand, 1\/3 HP at 240 VAC 10 A (relay)\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUpgrade your heating control with the Tekmar 261 for precise temperature management, reliability, and easy installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Metropac","offers":[{"title":"Default Title","offer_id":47605713633502,"sku":"50854","price":613.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/00346066_728feb62-eb53-4975-9fa7-863b64a4efa0.jpg?v=1765809108"},{"product_id":"tekmar-294-boiler-control","title":"Tekmar 294 Boiler Control","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cb\u003eTekmar 294 Boiler Control\u003c\/b\u003e is a high-performance microprocessor-based boiler controller designed for indoor heating systems. This 4-stage control uses DIP switches to configure stage sequencing, delivering precise boiler management for boilers, baseboards, and fan coils. Its compact footprint fits standard control panels at 7-9\/16 in W x 2-13\/16 in D x 6-5\/8 in H.\u003c\/p\u003e\n\u003cp\u003ePowered by 115 VAC and rated for a 32–122°F environment, the Tekmar 294 handles hot water media with reliable performance. The blue PVC NEMA 1 enclosure protects the electronics in indoor installations, while included components such as a 10 kΩ NTC thermistor at 77°F and a 500 Ω resistor support flexible sensor wiring. The control meets UL, CAS, ICES, and FCC standards for safe operation.\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003e4-stage control via DIP switches\u003c\/b\u003e for customizable operation\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003e10 kΩ NTC thermistor (77°F)\u003c\/b\u003e and \u003cb\u003e500 Ω resistor\u003c\/b\u003e included for accurate sensing\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eOutdoor\/Universal sensor compatibility\u003c\/b\u003e supports versatile setups\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eUL\/CAS\/ICES\/FCC listed\u003c\/b\u003e with a \u003cb\u003eNEMA 1 blue PVC enclosure\u003c\/b\u003e for indoor use\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eElectrical ratings\u003c\/b\u003e 2 VA at 20–260 VAC (Demand); 1\/3 HP at 230 VAC 5 A (Relay)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIdeal for residential or commercial indoor heating systems, the Tekmar 294 Boiler Control delivers dependable boiler management, efficient heat distribution, and robust safety compliance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Metropac","offers":[{"title":"Default Title","offer_id":47605713666270,"sku":"123306","price":1365.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/00346077_0f29b079-42d8-4d9c-87e3-214fb1402cae.jpg?v=1765815516"},{"product_id":"tekmar-76-indoor-sensor","title":"Tekmar 76 Indoor Sensor","description":"\u003cdiv\u003e\n\u003cp\u003eThe Tekmar 76 Indoor Sensor is a precision NTC thermistor device designed for robust boiler control and dependable indoor temperature feedback. With a PVC cable and a compact white enclosure, this sensor delivers consistent performance across the temperature range of -60 to 140°F. Its compact size measures 2-7\/8 in W x 13\/16 in D x 2-7\/8 in H.\u003c\/p\u003e \u003cp\u003eEngineered for accurate readings in residential and commercial systems, the Tekmar 76 Indoor Sensor provides fast response with durable construction and CSA approval for both Canada and the US.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003ePrimary use:\u003c\/b\u003e Boiler control and indoor temperature feedback\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eSensor type:\u003c\/b\u003e NTC thermistor\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCable:\u003c\/b\u003e PVC\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eEnclosure:\u003c\/b\u003e White, NEMA 1 rated\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eApproval:\u003c\/b\u003e CSA (Canada and US)\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eOperating range:\u003c\/b\u003e -60 to 140°F\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eDimensions:\u003c\/b\u003e 2-7\/8\" W x 13\/16\" D x 2-7\/8\" H\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Metropac","offers":[{"title":"Default Title","offer_id":47605713699038,"sku":"35491","price":57.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/00346164_f83c3005-56a6-4ea7-a6b2-06f3c2f52b1a.jpg?v=1765809103"},{"product_id":"tekmar-77-indoor-sensor","title":"Tekmar 77 Indoor Sensor","description":"\u003cdiv\u003e\n\u003cp\u003eTekmar 77 Indoor Sensor provides accurate indoor temperature sensing with a robust NTC thermistor. Built for durability, it features baked enamel steel as the wetted material and carries CSA approval for Canada and the US.\u003c\/p\u003e \u003cp\u003eThis indoor temperature sensing device is designed for reliable performance in sealed environments and offers a wide operating range from -60 to 140 °F. Its compact footprint measures 2-7\/8 inches wide, 1\/2 inch deep, and 4-1\/2 inches tall, making it easy to install in panels, enclosures, or wall cavities.\u003c\/p\u003e \u003cp\u003eIncluded with the sensor are 12 inches of 20 AWG XLPE multi-strand conductor and mounting hardware to simplify installation: two #6-32 TPI x 3\/4 inch screws and two #6-32 TPI x 1\/2 inch white cover plate screws.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eType:\u003c\/b\u003e NTC thermistor\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eWetted material:\u003c\/b\u003e baked enamel steel\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eOperating temperature:\u003c\/b\u003e -60 to 140 °F\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eSize:\u003c\/b\u003e 2-7\/8\" W x 1\/2\" D x 4-1\/2\" H\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e indoor temperature sensing\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eApproval:\u003c\/b\u003e CSA (Canada and US)\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eWiring:\u003c\/b\u003e 12\" 20 AWG XLPE multi-strand\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMounting hardware:\u003c\/b\u003e (2) #6-32 x 3\/4\" screws, (2) #6-32 x 1\/2\" white cover plate screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Metropac","offers":[{"title":"Default Title","offer_id":47605713764574,"sku":"56333","price":90.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/00346165_fb5a0e12-7d79-47f6-a356-3c5a912c6222.jpg?v=1765821760"},{"product_id":"tekmar-70-outdoor-sensor","title":"Tekmar 70 Outdoor Sensor","description":"\u003cdiv\u003e\n\u003cp\u003eThe Tekmar 70 Outdoor Sensor delivers precise outdoor temperature readings for display and control applications. Built around a reliable NTC thermistor, it provides dependable data to outdoor temperature display and control systems, making it ideal for HVAC and environmental monitoring.\u003c\/p\u003e \u003cp\u003eDesigned for rugged outdoor use, the white enclosure carries a NEMA 2 rating to guard against dust and water exposure. It is CSA approved for Canada and the US, ensuring compliance with safety and performance standards. The compact design fits easily into outdoor mounting configurations and integrates with existing controls. Perfect for outdoor temperature display control operation across commercial and residential installations.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eSensor type:\u003c\/b\u003e NTC thermistor delivers fast, accurate outdoor temperature readings\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCable:\u003c\/b\u003e PVC jacket provides durable, weather-resistant wiring for outdoor installs\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eEnclosure:\u003c\/b\u003e White, NEMA 2 rated enclosure protects components from dust and moisture\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCertification:\u003c\/b\u003e CSA approved for North America (Canada and United States)\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eOperating range:\u003c\/b\u003e -60 to 140°F (-51 to 60°C) supports diverse climates\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Metropac","offers":[{"title":"Default Title","offer_id":47605713830110,"sku":"15196","price":46.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/00344627_a775f3d3-4906-439e-b833-f2359d5596bb.jpg?v=1765815663"},{"product_id":"tekmar-360-pump-mixing-control","title":"Tekmar 360 Pump Mixing Control","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cb\u003eTekmar 360 Pump Mixing Control\u003c\/b\u003e delivers precise pump mixing for heating and cooling systems. This indoor, microprocessor-controlled unit optimizes boiler, baseboard, and fan coil performance with a floating action output and a DIP switch configuration for flexible setup.\u003c\/p\u003e \u003cp\u003eDesigned for \u003ci\u003ehot water\u003c\/i\u003e applications, the Tekmar 360 operates from a 120V AC supply (up to 1300 VA) and tolerates 32–104°F ambient conditions. It includes a 10K ohm NTC thermistor at 77°F and an outdoor\/universal sensor to maintain accurate temperature control in varying environments. Housed in a blue PVC NEMA 1 enclosure, this controller is UL, CAS, ICES, and FCC listed for safe indoor HVAC installations.\u003c\/p\u003e \u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMicroprocessor-based control with DIP switch for precise pump mixing\u003c\/li\u003e \u003cli\u003eFloating output: 0.34 A at 24 VAC (8 VA); Demand input: 2 VA at 20–260 VAC\u003c\/li\u003e \u003cli\u003eRelay output rated 1\/3 HP at 230 VAC (5 A)\u003c\/li\u003e \u003cli\u003eMedia handled: hot water; ideal for boilers, baseboards, and fan coils\u003c\/li\u003e \u003cli\u003eCompact blue PVC enclosure, NEMA 1; operating range 32–104°F, 95% RH non-condensing\u003c\/li\u003e \u003cli\u003eIncludes 10K NTC thermistor (77°F) and outdoor\/universal sensor\u003c\/li\u003e \u003cli\u003eUL, CAS (US \u0026amp; Canada), ICES, FCC compliant for reliable, safe indoor use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Metropac","offers":[{"title":"Default Title","offer_id":47605713895646,"sku":"50855","price":692.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/00346080_05f94167-1396-4d87-aaf6-f88d1ca5c3db.jpg?v=1765809110"},{"product_id":"tekmar-54-room-temperature-unit","title":"Tekmar 54 Room Temperature Unit","description":"\u003cdiv\u003e\n\u003cp\u003eThe Tekmar 54 Room Temperature Unit replaces outdated control systems with precise, reliable temperature management. It operates in a 40-100F range, delivering dependable room comfort and serving as a direct replacement for the 055 model.\u003c\/p\u003e \u003cp\u003eBuilt for straightforward installation and long-term reliability, this RTU integrates with common HVAC controls to maintain steady temperatures with minimal energy waste. The unit’s rugged design supports varied environments, from home comfort to light commercial use. Its compatibility with standard wiring reduces installation time and minimizes troubleshooting.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eWide temperature range\u003c\/b\u003e: 40-100F for versatile room regulation\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eDirect replacement for 055\u003c\/b\u003e: easy swap with existing wiring and setups\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eReliable RTU performance\u003c\/b\u003e: accurate readings and steady operation\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eHVAC compatibility\u003c\/b\u003e: designed to work with standard control boards\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eDurable and service-friendly\u003c\/b\u003e: robust construction with easy maintenance\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eEnhance climate control with the Tekmar 54 Room Temperature Unit and enjoy improved comfort, efficiency, and peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Metropac","offers":[{"title":"Default Title","offer_id":47605713961182,"sku":"34935","price":151.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/TEKMAR_054_Image1.jpg?v=1769788018"},{"product_id":"tekmar-150-set-point-control","title":"Tekmar 150 Set Point Control","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cb\u003eTekmar 150 Set Point Control\u003c\/b\u003e is a programmable, digital, 1-stage thermostat designed for indoor heating and cooling applications. This microprocessor-based control uses a DIP switch for simple setup and offers precise temperature management for residential or light commercial systems. Its compact footprint fits in tight spaces without sacrificing performance.\u003c\/p\u003e \u003cp\u003eA 10 kΩ NTC thermistor universal sensor provides accurate readings across a range of environments, while the white PVC NEMA 1 enclosure protects sensitive electronics and withstands everyday indoor use. Dimensions are 2-7\/8 in W x 7\/8 in D x 4-3\/4 in H, keeping installation neat, and UL\/CAS listing ensures compliance.\u003c\/p\u003e \u003cp\u003eOperate in heating or cooling mode with flexible control options. The Tekmar 150 accepts 24 V input (AC\/DC) and delivers 0.02 A current draw, with bang\/bang time delays from 0 to 19 minutes 50 seconds and PWM cycle lengths from 30 seconds to 19 minutes 50 seconds. Designed for indoor systems with ambient -20 to 120°F and up to 90% RH non-condensing.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eProgrammable, digital, 1-stage thermostat with DIP switch\u003c\/li\u003e \u003cli\u003eMicroprocessor-based control for precise temperature management\u003c\/li\u003e \u003cli\u003eUniversal 10 kΩ NTC thermistor sensor for reliable readings\u003c\/li\u003e \u003cli\u003eNEMA 1 white PVC enclosure for indoor installation\u003c\/li\u003e \u003cli\u003eCompact dimensions: 2-7\/8\" W x 7\/8\" D x 4-3\/4\" H\u003c\/li\u003e \u003cli\u003e24 V electrical input (AC\/DC) and 0.02 A current draw\u003c\/li\u003e \u003cli\u003eBang\/Bang and PWM control modes with adjustable delays\u003c\/li\u003e \u003cli\u003eUL and CAS listings for safety and compliance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Metropac","offers":[{"title":"Default Title","offer_id":47605713993950,"sku":"4841","price":287.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/00346067_ed04d5d1-1a35-4c0d-81d9-605279ae1a3e.jpg?v=1765818427"},{"product_id":"tekmar-79-slab-sensor","title":"Tekmar 79 Slab Sensor","description":"\u003cdiv\u003e\n\u003cp\u003eThe \u003cb\u003eTekmar 79 Slab Sensor\u003c\/b\u003e is a precision NTC thermistor-based slab temperature sensor designed for accurate floor temperature sensing. Featuring a wetted \u003cb\u003e316 stainless steel\u003c\/b\u003e body and a compact 3\/16 inch outer diameter by 1-1\/2 inch length, it delivers durable performance in challenging floor installations. The sensor operates within -58 to 140°F (-50 to 60°C), making it suitable for a wide range of heating and cooling applications. CSA approved for Canada and the United States, it meets safety and compatibility standards for commercial and residential systems. The unit comes with a 10-foot 24 AWG conductor wire and utilizes 300-Volt PVC insulated Zipcord for reliable electrical insulation and easy wiring into control panels.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eNTC thermistor\u003c\/b\u003e sensing element for accurate, responsive readings\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eWetted material\u003c\/b\u003e: 316 stainless steel for durability and corrosion resistance\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eDimensions\u003c\/b\u003e: 3\/16\" OD x 1-1\/2\" length for tight floor installations\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCable\u003c\/b\u003e: 300 Volt PVC insulated Zipcord with 10 ft of 24 AWG conductor wire included\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eOperating range\u003c\/b\u003e: -58°F to 140°F (-50°C to 60°C)\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eApplication\u003c\/b\u003e: Ideal for floor temperature sensing in heating and cooling systems\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCompliance\u003c\/b\u003e: CSA approved for Canada and the US\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Metropac","offers":[{"title":"Default Title","offer_id":47605714026718,"sku":"64687","price":43.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/00346169_990deba3-1636-4154-b298-6361004d52d1.jpg?v=1765823090"},{"product_id":"tekmar-72-slab-sensor","title":"Tekmar 72 Slab Sensor","description":"\u003cdiv\u003e\n\u003cp\u003eTekmar 72 Slab Sensor delivers precise temperature monitoring for outdoor snow-melting slabs, soil, and concrete burial. This NTC thermistor slab sensor features a rugged HDPE sleeve and jacket, with a solid PVC conductor cable and a 20-foot lead for flexible installation. Operating from -60 to 140°F, it maintains accurate readings in extreme outdoor conditions. The unit measures 3\/8 inch outer diameter by 1-1\/2 inch length and is CSA approved for use in Canada and the US.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eNTC thermistor element\u003c\/b\u003e for accurate, fast temperature sensing.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eHDPE sleeve and jacket\u003c\/b\u003e protect the sensor in wet outdoor environments.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eSolid PVC conductor cable\u003c\/b\u003e for durable, reliable connections.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCompact form\u003c\/b\u003e at 3\/8 in OD x 1-1\/2 in length for easy installation.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eWide operating range\u003c\/b\u003e -60 to 140°F (-51 to 60°C).\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003e20 ft conductor cable included\u003c\/b\u003e for flexible routing.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCSA approved\u003c\/b\u003e for use in Canada and the United States.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Metropac","offers":[{"title":"Default Title","offer_id":47605714059486,"sku":"55809","price":118.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/00346162_e6b0455e-f2a7-45f4-a6b2-7b38e4b55a6d.jpg?v=1765820653"},{"product_id":"tekmar-518-thermostat","title":"Tekmar 518 Thermostat","description":"\u003cdiv\u003e\n\u003cp\u003eTekmar 518 Thermostat is a programmable digital thermostat designed for precise temperature control in HVAC systems.\u003c\/p\u003e\n\u003cp\u003eThis compact, microprocessor-based unit delivers reliable 1-Heat performance with a durable relay switch for steady operation.\u003c\/p\u003e\n\u003cp\u003eSuitable for residential and commercial installations, it supports low voltage operation from 10 to 30 V AC or DC and handles up to 2 A, with 1.8 VA standby and 56 VA fully loaded power ratings.\u003c\/p\u003e\n\u003cp\u003eIts NTC thermistor sensor provides accurate readings, while the white plastic NEMA 1 enclosure offers rugged protection in typical environments. FCC and ICES approvals confirm compliance with essential standards.\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eProgrammable digital thermostat with microprocessor control\u003c\/li\u003e \u003cli\u003eLow-voltage operation: 10–30 V AC\/DC, 2 A\u003c\/li\u003e \u003cli\u003eRelay switch output for reliable switching\u003c\/li\u003e \u003cli\u003eEfficient power usage: 1.8 VA standby, 56 VA full load\u003c\/li\u003e \u003cli\u003eCompact size: 3\" W × 15\/16\" D × 3-11\/16\" H\u003c\/li\u003e \u003cli\u003eNTC thermistor sensor for accurate temperature sensing\u003c\/li\u003e \u003cli\u003eNEMA 1 white plastic enclosure for durable protection\u003c\/li\u003e \u003cli\u003eFCC and ICES compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Metropac","offers":[{"title":"Default Title","offer_id":47605714092254,"sku":"287708","price":103.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/00346204_725ad391-5a9e-4e6b-89df-96cc43130beb.jpg?v=1765822373"},{"product_id":"tekmar-78-universal-sensor","title":"Tekmar 78 Universal Sensor","description":"\u003cdiv\u003e\n\u003cp\u003eThe Tekmar 78 Universal Sensor is a versatile temperature sensor designed for accurate monitoring in hot water tanks, pipes, and heating systems. Its \u003cb\u003eNTC thermistor\u003c\/b\u003e provides precise readings, housed in a rugged \u003cb\u003ebrass sleeve\u003c\/b\u003e to withstand water environments.\u003c\/p\u003e \u003cp\u003eWith a compact footprint and dependable construction, this universal sensor is ideal for measuring \u003cb\u003ehot water tank temperature wells\u003c\/b\u003e, or monitoring \u003cb\u003esupply or return temperature\u003c\/b\u003e in heating circuits. The unit features a \u003cb\u003e3\/8\" outer diameter\u003c\/b\u003e by \u003cb\u003e3\/4\" length\u003c\/b\u003e, a \u003cb\u003e300 Volt HDPE stiff jacketed\u003c\/b\u003e cable, and a \u003cb\u003e15 ft 18 AWG conductor\u003c\/b\u003e lead for easy integration into control panels. It is \u003cb\u003eCSA approved\u003c\/b\u003e for Canada and the US and rated for operating temperatures from \u003cb\u003e-40 to 221°F\u003c\/b\u003e.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003ePrimary sensing element:\u003c\/b\u003e NTC thermistor for fast, accurate temperature readings\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eDurable wetted parts:\u003c\/b\u003e Brass sleeve suitable for water environments\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCable and conductor:\u003c\/b\u003e 300V HDPE stiff jacketed cable with 15 ft 18 AWG conductor\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCompact dimensions:\u003c\/b\u003e 3\/8\" OD x 3\/4\" L fit for temperature wells and tight spaces\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eApplications:\u003c\/b\u003e Measures hot water tank wells, and supply\/return temperatures\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCertification:\u003c\/b\u003e CSA approved for Canada and the United States\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Metropac","offers":[{"title":"Default Title","offer_id":47605714125022,"sku":"64362","price":96.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/00346168_6dd4d0cd-2d06-479b-a228-03ebe14bf23e.jpg?v=1765822423"},{"product_id":"tekmar-71-universal-sensor","title":"Tekmar 71 Universal Sensor","description":"\u003cdiv\u003e\n\u003cp\u003eThe Tekmar 71 Universal Sensor delivers precise boiler supply temperature readings with a rugged NTC thermistor design. Engineered with a corrosion-resistant brass sleeve, this universal sensor is built to monitor the boiler supply and deliver reliable data across demanding conditions.\u003c\/p\u003e \u003cp\u003eOperating from -60 to 225°F, it maintains accurate readings during cold starts and hot-water circulation.\u003c\/p\u003e \u003cp\u003eThe sensor features a compact size of 3\/8 inch outer diameter by 3\/4 inch length, UL and CSA approvals, and a built-in 12-inch 20 AWG XLPE conductor wire for quick installation.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eNTC thermistor\u003c\/b\u003e sensing element for highly accurate, fast-response temperature readings\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCorrosion-resistant brass sleeve\u003c\/b\u003e as wetted material suitable for boiler and water contact\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide operating range\u003c\/b\u003e -60 to 225°F for versatile boiler sensing in cold and hot conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact footprint\u003c\/b\u003e 3\/8\" OD x 3\/4\" length to fit tight installations\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePre-attached wiring\u003c\/b\u003e 12\" 20 AWG XLPE conductor wire for quick, reliable wiring\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUL and CSA approved\u003c\/b\u003e for safe, industry-standard use in the US and Canada\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Metropac","offers":[{"title":"Default Title","offer_id":47605714157790,"sku":"6782","price":38.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/00338758_27e5309c-9edf-46a8-80d2-2c003cc587c5.jpg?v=1765822606"},{"product_id":"tekmar-152","title":"Tekmar 152 Temperature Control Controller","description":"\u003cdiv\u003e\n\u003cp\u003eTekmar 152 is a 2-stage set point control designed for precise temperature management in heating and cooling systems. This compact, industrial controller delivers reliable temperature control across commercial and industrial HVAC applications, combining clear setup with steady performance for boilers, radiant heating, and chilled-water loops. Built to endure demanding conditions, Tekmar 152 emphasizes long-term reliability and low maintenance in busy facilities.\u003c\/p\u003e \u003cp\u003eIdeal for engineers seeking precision temperature control and energy-efficient operation, the Tekmar 152 integrates easily into existing control schemes and supports standard automation workflows. Designed for long-term reliability and easy maintenance, it is a robust choice for retrofit projects and new installations in demanding environments. It also integrates with building automation networks to support centralized monitoring and control.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e2-stage set point control for staged heating and cooling\u003c\/li\u003e\n\u003cli\u003eSimple, intuitive programming for quick setup and calibration\u003c\/li\u003e\n\u003cli\u003eCompact, rugged industrial controller built for demanding environments\u003c\/li\u003e\n\u003cli\u003eReliable performance with predictable temperature response\u003c\/li\u003e\n\u003cli\u003eSupports integration with standard automation and monitoring systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Metropac","offers":[{"title":"Default Title","offer_id":47605714223326,"sku":"36073","price":325.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/00346061_b562835e-b364-4450-8a2c-f0802c97df89.jpg?v=1765810423"}],"url":"https:\/\/newenglandsupplyhouse.com\/collections\/tekmar-hvac-controls.oembed","provider":"New England Supply House","version":"1.0","type":"link"}