Set these thermostats to adjust the temperature at certain times each day. They control low-voltage HVAC systems. You can lock the settings to prevent unwanted or accidental changes, which is helpful in public areas. If the power fails, these thermostats have battery backup to retain your program.

Regulate line-voltage HVAC systems.

Control one- and two-speed line-voltage HVAC systems. Set the thermostat to activate the device’s second speed when the temperature surpasses the setting for the first speed by 3.6° F to 9° F.

Control, monitor, and program your HVAC system from anywhere. These thermostats connect to a Wi-Fi network, so you can use a computer, tablet, or smartphone to view and adjust settings. You can also lock the settings to prevent accidental changes or tampering in public areas. They control low-voltage, multistage HVAC systems that have up to three heating and cooling speeds. Use them to set an individual program for each day of the week.

Also known as snap discs, these thermostats switch on cooling systems or switch off heating systems when equipment gets too hot. Each thermostat has five temperature options for switch activation; choose the one that best suits your application.

Unlike heat-actuated switches, these thermostats reset automatically, saving you the effort of replacing a melted fusible link. To calculate their reset temperature, subtract their differential temperature from the temperature you set them at. For example, a thermostat set at 100° F with a 20° F differential will reset at 80° F.

Use to regulate line-voltage HVAC systems where flammable gases, vapors, and dust are present.