... wants to protect.receive and transmitter alarm triggered distance :0-25m adjustedanti-lost, searching function PACKAGE:Transmitter: 44 (H) ×28 ... PowerAlarm, Video Monitoring system, Wireless Remote controller, RF Transmitter/Receiver module,Smoke/Gas/PIR Motion/Door sensor and ... cars, motorcycles,shops and house.Especially, our RF Transmitter/Receiver module used extensively in the garage, shutter ...