... : DC 5V 5.Wireless Receiver optical rf receiver rf transmitter and receiver wireless audio video transmitter receiver Operating frequency:315MHz/433.92MHzModulation ... Remote controller, RF Transmitter/Receiver module, Smoke/Gas/PIR Motion/Door sensor and so on. We can also ... widely used in cars, motorcycles, shops and house.Especially, our RF Transmitter/Receiver module used extensively in the garage, ...