DiO Wireless Dusk Switch/Sensor DescriptionThe dusk sensor detects when it gets dark and then sends a radio signal to one or more receivers. With this practical and functional system, you can automatically turn on your lights or electrical appliances connected to receivers when it gets dark. DIO 1.0 and DIO 2.0 products are 100% interchangeable and 1-to-1 compatible with Klikaanklikuit products. Dusk switch with timer Photoelectric sensor General information Range: 50 m Frequency: 433.92 MHz Duration setting: 2 h, 3 h, 4 h, 5 h, 6 h, 7 h or 8 h Light intensity setting Power supply: 3 V DC (2 x AA 1.5 V, not included) Technical specifications