roller shutter sensor radio fire smoke alarm sensors for Electric smoke exhaust window
Wireless fire smoke alarm for roller shutter with linkage function specifications: The wireless smoke alarm is mainly used to control roller shutter window or automatic window, When a fire occurs, the smoke alarm sound an alarm, and then send a radio RF signal to the motor controller to open roller shutter or window. So that you can use the least amount of time to escape danger. 1. Main unit: Linkage function 2. Voltage: DC9V 3. Emission distance: >50m 4. Wirless convenient for instal
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