Occupancy/Vacancy Sensors, Wall Switch, Adaptive Dual Technology, 2 Circuit, 120/277V AC, Office White

Ultrasonic (US) technology senses occupancy by bouncing sound waves (32 kHz - 45 kHz) off of objects and detecting a frequency shift between the emitted and reflected sound waves. Movement by a person or object within a space causes a shift in frequency, which the sensor interprets as occupancy. While US occupancy sensors have a limited range, they are excellent at detecting even minor motion such as typing and filing, and they do not require an unobstructed line-of sight. This makes US technology sensors ideal for an application like an office with cubicles or a restroom with stalls.

• Coverage 2000 sq. ft. (360°), line voltage sensor
• Excellent minor motion detection
• Self-contained power supply with high load relay
• Directly mounts to 4" octagon boxes, 2.125" deep
• Digital, crystal controlled ultrasonic transmitter and receiver for coverage in each direction for superior sensing of movement
• Office White ABS enclosure blends with ceiling tile
• Green LED indicates ultrasonic detection