it works together with alarm system

Power requirements: DC=12V-8.4V(A23 DC=12V battery inside)

Current consumption: less than 20μA; Less than 15mA while transmitting

Transmit frequency: 315±0.2MHz

Transmit duration: less than 1s

Transmit distance from host: more than 80m(no obstacle); less than 15mm between  partand part B

Temperature: -10 to 40

Humidity: less than 90%