... Dimensions: 43*30mm rf machine Radio frequency with 315 or 433.92MHz wireless rf receiver module 1). Wireless frequency: 315MHz/433 ... Video Monitoring system, Wireless Remote controller, RF Transmitter/Receiver module, Smoke/Gas/PIR Motion/Door sensor and so on. ... motorcycles, shops and house.Especially, our RF Transmitter/Receiver module used extensively in the garage, shutter and automatic door, ...