SONOFF1 433MHz Metal Remote Controller with Keychain with Arm/Disarm/Home Arm/SOS 4 Buttons Remote Control

Note: It must-work with its 433MHz alarm host. Mainly for ZH-100D alarm host. Specifications: Transmission Frequency: 433MHz Emission code protocol: 1527 protocol Transmission Distance: 80m (open area) Launch time: T=1s Working voltage: 12V Battery: 12V 23A battery(included) Emission current: 9-12mA Transmitting power: 10-15mw Static current: 0 Shock Resistance: 4.7M Modulation method: ASK Number of buttons: 4 button(Arm/Disarm/Home arm/SOS) Working environment: -10?-50? (14?-122?) Relative humidity: ? 90%  Package Size: Approx. 95*60*30mm/3.74*2.36*1.18inches Package Weight: Approx. 27.5g/0.97ounces            Package List: 1 * Remote Control