Reset fire panels, or open electromagnetic locks, electric strikes, and automatic door openers. These switches require a key to turn circuits on or off, limiting access and preventing accidental activation. The lock is not included; use a 1 1/4" long mortise lock with a standard cam.

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Control lights on a single circuit from more than one motion-sensing switch. Also known as occupancy sensors, these controls turn lights on when movement is detected and off when an area is unoccupied. The infrared sensors detect changes in heat sources and require a direct view of the occupants. Use up to four controls on the same circuit to detect motion in large rooms. All have a time delay to turn lights off after a set time.

Switches fit single device (1 gang) outlet boxes. Program them to turn a device on and off at a set time and day. They’re often used with lamps and other small electrical loads.

24-hour switches repeat the same program daily. Position trippers around the clock dial to set on and off times.

Seven-day switches can perform a different program each day of the week. Use the astronomical timing to turn lights on and off based on sunrise and sunset; this option can be used independently or in combination with timed programming.

Use these switches in place of standard wall switches to automatically turn electrical equipment on or off after a set interval of time. They’re often used with lights.

Switches with override can bypass the automatic shut-off.

Set switches with beep and light signals to alert when the timer is almost done; the signals can also be turned off.

Switches with set time recall retain the last setting; hold the button down to restart the timer with that setting.

Control two devices and delay the shut off of one device by up to one hour. These switches are often used with lights and fans for ventilation. All have an override that bypasses the automatic shut-off.

Check that your HVAC smoke detector is working properly. Wire these test stations to your smoke detector controller to test difficult to access smoke detectors from a convenient location. Indicator lights show if your smoke detector is powered on, if it senses smoke, and if its sensors are too dirty to detect smoke and need cleaning. These test stations activate with the turn of a key so you don’t turn them on by accident.