Feature:1. Safe: Relay remote control switch, learning code has a high level of security, with low repetition rate and re learning mode, in order to generate new codes.2. Easy To Use: When the remote control is lost, it can delete the old code and relearn the new code, so you can control it at any time, which is convenient and practical.3. Stable And Sensitive: It is very easy to set up, learn, relearn and control, stable and reliable, and sensitive in receiving, it is equipped with a remote control and is more flexible to use.4. Widely Used: Mainly used in lighting, electric doors and windows, lifting equipment, gates, elevators, industrial control and security industries and other fields.5. Good Performance: The wireless remote control switch has a working frequency of 433MHz, a working voltage of 1248V, and a wide operating temperature range.Specification:Item Type: Relay Remote SwitchMaterial: ABSWorking Voltage: 12-48VWorking Temperature: -40 + 80Receiver Sensitivity: Greater Than -105dBmWorking Frequency: 433MHzRemote Control Battery: 23A Battery (Not Included).Package List:1 x Relay1 x Remote Control1 x Manual