High-concerned chemical: None - This product is free from harmful chemicals, ensuring a safe and environmentally friendly solution for your home automation needs. Ideal for those who prioritize health and sustainability. Frequency and Channel: Operates at a frequency of 433 MHz on a single channel, providing reliable and interference-free communication across various devices. Model and Wireless Communication: Model number 433 with RF wireless communication allows for seamless integration and control of lighting, electric doors, automated curtains, and more, enhancing convenience and efficiency. Universal Use and Support: Designed for universal compatibility, this remote control supports EV1527 learning code and can be used with a variety of devices including garage doors, gates, motors, LED lights, and smart rooms. Description Relay Receiver Board Parameter Working voltage : DC 12V Quiescent Current : <10MA Max current : 10A Receiving range:more than 50ms(on open space) RF frequency : 433MHz Working temperature : -30~+80 degrees Receiving Sensitivity : >97dbm Support encoding : 1527 Learning code RF Operating mode : ASK superheterodyne wireless reception Remote operating mode : Momentary Mode / Toggle Mode / Latched Mode / Time Delay Mode (5s ,10s ,15s ) Remote control battery:3 V CR2016 button batteries Remote programming Working mode: 1. Inching mode: press the remote controltherelaywill connect, and thenrelease the remote controlto disconnect the relay; 2. Self-locking mode: press the remote controltherelaywill connect, and then press the remote controlagainto disconnect the relay; 3. Interlock mode: press the remote control key A toconnect the relay, and press the remote control key B to disconnect relay. 4. Delay mode: press the remotecontroltherelaywill connect, release the remote control and start timing. After 5S, 10S and 15S (3 gears), the relay will be automatically closed. Color: As Shown Material: plastic Package Contents: one 433Mhz DC 12V 1CH Uni