220V Module Sound Sensor Switch Detector Auto On Off Lights Switch for Corridor Bath Warehouse Stair Switches

Highlights

• This sensor is in dormant state when in lighting environment, for example in daytime
• Can be controlled by any sound and it will working In the dark environment, for example in night
• If the sensor feel sound, the controlled lamp will be light about 45 seconds
• Automatic control, saves energy
• Used in corridor, bathroom, warehouse, stair etc.