Features :1. 100% brand new and high quality.2. Bipolar design : with an ordinary wall switch ( three-wire connection ) ， load capacity 1000W.3. Automatic sensors: When people come the switch will immediately turn on， after people leave it delay off automatically.4. Lightning features: Special lightning protection devices ， can effectively prevent lightning and other transient overvoltage damage caused to the switch.5. Relay switch: Switch load power， relay switch life of 100，000 times.Specification:1. Adjustable delay time: 16 seconds -350 seconds.2. Ultra-low power: switch own power <0.016W / h3. Installation: Suction point mounting / ceiling mounting.4. Diameter: 98 mm5. Thickness: 40 mm6. Operating voltage: 180-240 (V)7. Detection Angle: 360 Degrees8. Sensing range: 15 seconds -180 seconds9. Adjustable induction principle: human pyroelectric infrared10. Scope: hotels， guesthouses Package included : 1 x Sensor Detector Switch2 x Clips