Thermostats | McMaster-Carr

Filter by

Voltage

For Use With

Application

Thermostat Type

Wi-Fi Enabled Programmable

For System Type

Display Type

Temperature Setting

Number of Circuits Controlled

Measurement Unit

Electrical Phase

Control Type

Proportional-Integral-Derivative

Mounting Location

Switch Designation

Sensor Type

Current

Maximum Temperature

Actuation Point Adjustability

Adjustable

Fixed

Maximum Switching Current @ Voltage

For System Efficiency

Output Voltage

Switch Starting Position

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

RoHS

Compliant

Compliant with Exemptions

REACH

Minimum Temperature

332 Products

Thermostats

Line-Voltage Thermostats

Regulate line-voltage HVAC systems

3 products

Low-Voltage Thermostats

Control low-voltage HVAC systems that have only one speed

5 products

Programmable Low-Voltage Thermostats

Adjust temperatures for certain times throughout the day

5 products

Enclosure Thermostats

Control temperatures in an enclosure to protect electronics

12 products

Enclosure Thermostats for Multiple Devices

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

11 products

Wi-Fi Enabled Programmable Low-Voltage Thermostats

Control, monitor, and program your HVAC system from anywhere

5 products

Programmable Line-Voltage Thermostats

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

3 products

Plug-In Line-Voltage Thermostats

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

1 product

Remote-Sensing Line-Voltage Thermostats

Monitor and control temperatures in enclosures or different rooms

2 products

Snap-Acting Thermostats

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

7 products

Multispeed Line-Voltage Thermostats

Control one- and two-speed heaters and air conditioners

1 product

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

Tamper-Resistant Line-Voltage Thermostats

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

2 products

Hazardous Location Line-Voltage Thermostats

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

2 products

Line-Voltage Thermostats with Thermowell

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

1 product

Remote-Sensing Hazardous Location Line-Voltage Thermostats

Monitor and control temperatures in rooms and enclosures with hazardous conditions

1 product

Wet-Location Line-Voltage Thermostats

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

3 products

Remote-Sensing Line-Voltage Thermostats with Thermowell

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

1 product

Remote-Sensing Room-Monitoring Adjustable Thermostats

When temperatures reach a certain level, a "high" or "low" message appears

3 products

Direct-Action Air-Powered Thermostats

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

1 product

Reverse-Action Air-Powered Thermostats

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

1 product

Other Products

Temperature Switches

Turn heating equipment on or off at a specified temperature

137 products

Temperature Controllers

Precisely regulate process temperatures; more accurate than temperature switches

93 products

Thermostat Guards

Restrict access to thermostats and protect them from damage

12 products

Water Heater Thermostats

Replace the thermostat on your water heater

3 products

Duct Damper Actuators

Automatically adjust duct dampers to regulate airflow

5 products

Power Adapters

NEMA connection adapters, outlet adapters, and outlet splitters

3 products

Drinking Fountain Replacement Parts

Replace nozzles, regulators, filters, handles, and other original manufacturer parts

2 products