HVAC Thermostats | McMaster-Carr

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84 Products

Thermostats

Programmable Low-Voltage Thermostats

Adjust temperatures for certain times throughout the day

5 products

Low-Voltage Thermostats

Control low-voltage HVAC systems that have only one speed

5 products

Wi-Fi Enabled Programmable Low-Voltage Thermostats

Control, monitor, and program your HVAC system from anywhere

5 products

Line-Voltage Thermostats

Regulate line-voltage HVAC systems

3 products

Remote-Sensing Line-Voltage Thermostats

Monitor and control temperatures in enclosures or different rooms

2 products

Remote-Sensing Hazardous Location Line-Voltage Thermostats

Monitor and control temperatures in rooms and enclosures with hazardous conditions

1 product

Remote-Sensing Line-Voltage Thermostats with Thermowell

The thermostat senses the liquid's temperature, and the thermowell protects the sensor

1 product

Enclosure Thermostats

Control temperatures in an enclosure to protect electronics

12 products

Programmable Line-Voltage Thermostats

Adjust temperatures for certain times throughout the day, up to 240V AC

3 products

Hazardous Location Line-Voltage Thermostats

Regulate temperatures in areas with flammable gases, vapors, and dust

2 products

DIN-Rail Mount Remote-Sensing Line-Voltage Thermostats

Place the thermostat on a DIN rail and the sensor in enclosures or different rooms

2 products

Direct-Action Air-Powered Thermostats

As the temperature goes up, the pressure in the system goes up

1 product

Enclosure Thermostats for Multiple Devices

Control two devices at the same time in an enclosure to protect electronics

11 products

Snap-Acting Thermostats

Turn cooling systems on and heating systems off when equipment gets too hot

7 products

Wet-Location Line-Voltage Thermostats

A sealed housing protects against dripping, splashing, and falling liquids

3 products

Tamper-Resistant Line-Voltage Thermostats

A built-in guard prevents damage, accidental changes, and tampering

2 products

Line-Voltage Thermostats with Thermowell

The thermostat senses the liquid's temperature, and the thermowell protects the sensor

1 product

Multispeed Line-Voltage Thermostats

Control one- and two-speed heaters and air conditioners

1 product

Plug-In Line-Voltage Thermostats

Plug in the thermostat, then plug your heater into the thermostat

1 product

Reverse-Action Air-Powered Thermostats

As the temperature goes up, the pressure in the system goes down

1 product

Other Products

Thermostat Guards

Restrict access to thermostats and protect them from damage

12 products

Temperature-Controlled Outlet Adapters

Automatically turn heating and cooling devices on and off as temperatures rise and fall

3 products