1. Wireless alarms with aluminum construction and plastic base. 2. Power source: 220 to 240V or 110 to 120V. 3. Maximum loading: 2x100W G9 bulb (bulb included). 4. Radio frequency transmission distance: 30m (open area). 5. 256 sets of changeable system codes are available. 6. Operation: activation of 326RH2 is controlled by the signal from motion sensor device. 7. Combine use with detector: 3006RZD, 3004RZD, 9202ASRZD-W24 (motion sensor series).