Wireless door sensor

Working voltage: 3V (2 AAA alkaline batteries) ;

Wireless transmission distance: ≥150 meters (open place) ;

Transmitting frequency: 433. 92MHZ/315MHZ/868. 4MHZ (optional)

Launch agreement: 1527;

Quiet current: ≤2μA;  

Emission current: ≤15mA;

dismantling switch: normally closed; Product size: 72*45. 5*14mm