Monitor passersby and trespassers with light and an alert. For facility security, these light controls notify you on a smartphone app when they sense motion and turn on. You can also use the app to link additional lights and configure which lights turn on when movement is detected. Also known as occupancy sensors, they use an infrared sensor to detect changes in heat sources, so they need a direct view of people. The included mounting bracket swivels 90°, so you can install them on your wall or ceiling.

Also known as occupancy sensors, these controls turn lights on when movement is detected and off when an area is unoccupied. All have a time delay to turn lights off after a set time.

Infrared/ultrasonic sensors minimize false activation by detecting changes in heat sources and motion. They can be set so that only one or both detection methods are required to activate and hold lights on.

Infrared sensors detect moving heat sources and require a direct view of the occupants.

Ultrasonic sensors detect movement and don’t require a direct view of the occupants.

Also known as pigtail holders. Temporarily wire these sockets to provide light during construction. They have a rubber lip that molds around bulbs to form a water-resistant seal.

Fine-tune motion-sensing light controls from your smartphone or tablet. Mounting on the ceiling gives these light controls a clearer view of the room than wall-mount sensors, so they detect motion over a larger area. They connect to a free downloadable app using Bluetooth. Use the app to adjust the amount of time lights stay on after people leave, set schedules, or override the sensor so lights are always on. Also known as occupancy sensors, they turn lights on when they sense movement and off after people leave.

Controls with infrared sensors detect changes in heat sources and need a direct view of people.

Controls with infrared/ultrasonic sensors have two detection methods to minimize false activation: infrared to sense heat sources and ultrasonic to sense motion. Use the app to adjust whether both or just one of these triggers will switch the lights.

Also known as occupancy sensors, these controls turn lights on when movement is detected and off when an area is unoccupied. The infrared/ultrasonic sensors minimize false activation by detecting heat and motion. They can be set so that only one or both detection methods are required to activate and hold lights on. All have a time delay to turn lights off after a set time. The mounting bracket swivels 90° so that the control can be mounted on a wall or ceiling.

Power Controllers—Power controllers are required to switch a 120- or 277-volt AC lighting circuit. They have a relay that switches a maximum 20 amp load.