Line & Low Voltage Thermostats, Relays & Transformers, Industrial/Commercial Space Thermostats, Plug In Inline Thermostats, Thermostat Wire
We are an authorized distributor for Honeywell and other leading thermostat manufacturers.
- Line voltage thermostats are typically used for electric radiant, convection or resistance heaters such as baseboard, cove and wall heaters.
- Low voltage thermostats are used with central heating systems including furnaces, boilers, air conditioning, heat pumps and split systems. The wires aren’t as thick as you’ll find on line-voltage stats.
If you’re replacing a thermostat you can check which one you need by looking at your wiring. Line-voltage thermostats have two or four thick wires coming out of the back that are attached with wire nuts to wires in the wall. The wires are much larger than the wires on low-voltage thermostats.
Click on a sub-category below or scroll past them to see all the products in this category. You may also use the filters on the left to sort the products in this category.
Line Voltage Thermostats - 120, 208, 240 Volts - Digital or Mechanical - Programmable or Non-Programmable- Low Voltage Thermostats - Programmable or Non-Programmable - mV to 24V & 30 VAC
- Relays and Transformers (Electromechanical and Solid state)
- Chromalox Bulb & Capillary thermostats use expanding liquid to open or close contacts in response to temperature changes
- Industrial/Commercial Space Thermostats and Temperature Controls - Line Voltage
- Plug In Inline Thermostats - Sensors detect & control temperature changes with piggyback plug or receptacle
- Thermostat Guards. Clear plastic or metal. Locking
- Thermostat Wire - 18 Ga or 20 Ga - 4 or 5 Conductor
- ESP120-R 120 Volt Digital ThermostatKing Electric 7 Day Independent Electronic Programmable 120V 22Amp Digital Line Voltage Thermostat, 3 Wire Leads, 44F - 95 F, Backlight Display, ON/OFF illumination switch, System OFF switch. Clam Shell Packaging.
KINGELECTRIC10378
- ESW WiFi WarmTiles ColorTouch ThermostatEasyHeat WiFi Enabled (remotely control from web browser, Android/iOS smartphone/tablet) Dual-Voltage 120/240 Volt 15 Amp Floor Warming Programmable Wall Thermostat - 3.5" color touch screen - 5 mA GFCI - Sensor Wire Included - UL Listed
EASY013627002982
- ET120 Thermostat - Celsius OnlyStelpro 0-10V Output Electronic Thermostat (ET120). LCD digital screen. 24 Vac 50/50 Hz, "heat", °C , white - Lcd - 0 - 10V Output - 24 Voltsac - "Heat" - °C - White
STELPRO626296197530
- ET9D4TS Double Pole ThermostatTPI Corp. (Markel/Raywall/Fostoria) 120-277, Double Pole Thermostat, 35F-75F Range, 22 Amp rated - DPST Heat Only Thermostat w thermometer, terminal, 35-75F
MARKEL523868
- ET9DWTS Heat Only ThermostatTPI Corp. (Markel/Raywall/Fostoria) DPST Heat Only Thermostat w thermometer, wire leads, 50-90F - Catalog #: 05238702
MARKEL523875
- ET9MTS Heat Only Thermostat/ThermometerTPI Corp. (Markel/Raywall/Fostoria) 50-90F Temperature Range - 2 Stage Heat Only Thermostat w thermometer, terminals, 50-90F - Catalog #: 05238802
MARKEL523882
- ET9S4TS Single Pole ThermostatTPI Corp. (Markel/Raywall/Fostoria) 120-277, Single Pole Thermostat, 35F-75F Range, 22 Amp rated - SPST Heat Only Thermostat w thermometer, terminals, 35-75F
MARKEL523905
- ET9SRTS Cool Only Thermostat 22 ampTPI Corp. (Markel/Raywall/Fostoria) SPST Cool Only Thermostat with thermometer, terminals, 50-90F - Cooling only - 120-277V - Fahrenheit & Celsius Temperature Scale - Shadow White Color - Catalog #: 05239102
MARKEL523912
- ET9SWTS Heat Only ThermostatTPI Corp. (Markel/Raywall/Fostoria) SPST Heat Only Thermostat w thermometer, wire leads, 50 - 90F - Catalog #: 05239202
MARKEL523929
- ETD9M4TS 2 Heat/1 Cool 35-75FTPI Corp. (Markel/Raywall/Fostoria) 2 Stage Heat, 1 Stage Cool Thermostat - Includes Thermometer - With Terminals - 35-75F - Heating: 22A @120-277VAC resistive - Cooling: 3/4HP @ 125VAC / 1.5HP @ 250/277 VAC - Catalog #: 05239602
MARKEL523967
- GHT2002J-FS Thermostatic ControllerPowerblanket Digital Adjustable Controller - Use with any Powerblanket product for greater temperature control - Digital temperature controller - Heat probes for precise temperature measurements - 110 volt electric plug - NEMA 4X Enclosure- -30 to 170 deg
POWERBLANKET814491010857
- HLT1 HLA Hazardous Location ThermostatTPI Corp. (Markel/Raywall/Fostoria) SPDT - Capillary - 22A @120-277VAC-24VAC - 40-110F - for HLA Series Hazardous Location Fan Forced Unit Heater - Catalog #: 05231502
MARKEL523158
- HP30 2 Circuit 120/208/240V ThermostatKing Electric 2 Circuit Programmable Electronic Line Voltage Wall Thermostat -16 Amps per Pole - 40-93 Deg F. Temp. Set Point Range - 5+1+1 Day Programmable - White with Gray Print - Maximum Watts: 7700@240V/6656@208V/3840@120V - AA Battery Powered
KINGELECTRIC19068
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- HWPT120 120V Thermostat with TimerKing Electric 2 Circuit Line Volt Programmable Thermostat - 12.5 Amp
KINGELECTRIC19049
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- K101 Single Pole White ThermostatKing Electric - Termperature Range 41F -90 (5 C - 32C), 22Amp Rated from 120/208/240V/277V Loading
KINGELECTRIC20576
- K102 Double Pole White ThermostatKing Electric - Temperature Range 41F -90F - 22Amp Rated from 120/208/240V/277V Loading, For 4 wire Connection - Double Pole (Positive Off) - WHITE - Bi-Metal Mechanical Sensing Element
KINGELECTRIC20623
- K302PE 120/208/240 Volt Prog. ThermostatKing Electric Electronic 7-Day Programmable Thermostat - 120, 208, 240 volt 15 Amp - Touch Sensitive Buttons - 41F-95F - Line Voltage Control of Electric Heaters. Compatible with the K312RELAY for Heating Applications Exceeding 15A
KINGELECTRIC10399
- K312RELAY Slave Relay unitKing Electric 120, 208, 240 volt 15 Amp Relay - Line Voltage Control of Electric Heaters - Links with and receives signal sent by K302PE or K322E Thermostat - Up to 10 Relays per Master - For Heating Applications Exceeding 15Amps
KINGELECTRIC10400
- K322E Electronic 120/208/240V 15A TstatKing Electric ClearTouch Electronic Non-Programmable 120, 208, 240 volt 15 Amp Thermostat - Temperature Control Of Line Voltage Electric Heaters. Compatible with the K312RELAY for Heating Applications Exceeding 15A - Touch Sensitive Buttons - 41F - 95F
KINGELECTRIC40360
- K701-1-DTSB 120V ThermostatSingle Pole Thermostat 120V 1920 watt, 55-74 temp range, Autonomous Dual Timed Electronic Thermostat with Setback Presets
KINGELECTRIC10401
- K702E-DTSB 240V ThermostatDouble Pole Thermostat 240V 3840 Watt, 55-74 temp range, Autonomous Dual Timed Electronic Thermostat with Setback Presets
KINGELECTRIC17192
- K901-B Black Single Pole WiFi ThermostatKing Electric Hoot Series WIFI Enabled Black Thermostat - Programmable With Hoot Smart Phone App - Large LCD touchscreen display - Temperature Range 41-90F - 120/208/240 Volt - 1 Pole - Line Voltage - For Baseboard, Fan Forced & Radiant Electric Heaters
KINGELECTRIC33150
- K901-W White Single Pole WiFi ThermostatKing Electric Hoot Series WIFI Enabled White Thermostat - Programmable With Hoot Smart Phone App - Large LCD touchscreen display - Temperature Range 41-90F - 120/208/240 Volt - Single Pole - Line Voltage - 16 Amp - For Baseboard, Fan-Forced & Radiant Heat
KINGELECTRIC33509
- K902-B Black Double Pole WiFi ThermostatKing Electric Hoot Series WIFI Enabled Black Thermostat - Programmable With Hoot Smart Phone App - Large LCD touchscreen display - Temperature Range 41-90F - 120/208/240 Volt - Double Pole - Line Voltage - For Baseboard, Fan Forced & Radiant Heaters
KINGELECTRIC33149
- K902-W White Double Pole WiFi ThermostatKing Electric Hoot Series WIFI Enabled White Thermostat - Programmable With Hoot Smart Phone App - Large LCD touchscreen display - Temperature Range 41-90F - 120/208/240 Volt - 2 Pole - Line Voltage - 16 Amp - For Baseboard, Fan Forced & Radiant Heat
KINGELECTRIC33510
- KT110 SPST 125-250V Thermostat Heat OnlyTPI Corp. (Markel/Raywall/Fostoria) Bi-Metal Industrial Series - Rugged steel case - 6 Inch Leads, Bi-Metal T-stat, UPC# 534086 - Range: -10-110F - Wire Leads - C&F - Hardwired model rated for 22A resistive @125-250 VAC - Catalog #: 05340802
MARKEL534086
- KTD110 Thermostat 22 Amp -10-100FTPI Corp. (Markel/Raywall/Fostoria) -10 to 100degF Range - Wire leads - SPDT - 6 Inch Leads - Temperature Scale: Cooler to Warmer - Catalog #: 05341702
MARKEL534178
- KTO121 120V Cooling Thermostat 6ft CordTPI Corp. (Markel/Raywall/Fostoria) Bi-Metal Thermostat -10-110F - 120 Volt - 6 Foot cord and plug - SPST Cool Only - Catalog #: 05342102
MARKEL534215
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