Leviton’s Provolt occupancy sensor combines line voltage occupancy sensors and photocells. The lens establishes dozens of detection zones that require the heat source to move from one zone to another to trigger the sensor. The sensor will turn lights off if no motion is detected after a specified time.

Leviton’s vandal-resistant, ODS10 occupancy sensor uses passive infrared detection technology to monitor a room for occupancy through a segmented fresnel lens. This lens divides the field-of-view into sensor zones. When a person passes into or out of a sensor zone, it detects motion and switches the lights on.

Leviton’s humidity sensor and fan control detects excess humidity and activates the ventilation fan to lessen condensation. The sensor uses a microprocessor combined with digital-sensing technology to monitor humidity levels. It fits within a standard wallbox.

Honeywell’s water defense leak alarm comes with 4 ft. of sensing cable that can be expanded to up to 250 ft. The cable allows it to be mounted on walls or in another room. The water sensing cable detects water on the entire length of the cable.

Lutron’s wireless daylight sensor provides convenient light control. The ceiling-mount sensor saves energy by dimming or turning off electric lighting when sufficient daylight is available. The sensor detects light in the space and then wirelessly transmits the appropriate commands to the compatible dimming and switching devices to take advantage of the daylight.

Honeywell’s indoor security motion sensor emits an alert when motion is detected. However, the alarm will not be triggered by background motions or small animals. It includes wireless setup, and the battery life is up to three years.