433MHz Wireless Switch Smart Switch RF Wall Panel Switch Universal Breaker 90V-250V RF Relay Receiver LED Light Lamp Fan Switch Working voltage: AC 90V~250V Quiescent Current: 108 dBm Number of remote controls supported: 25 Support encoding: 1527 rolling code, 2262 fixed code RF operating mode: ASK superheterodyne wireless reception Receiving range: Over 50 meters in open space, up to 15 meters indoors with walls Wall switch size: 86 standard size Switch battery: 1 x CR2032 coin cell battery (not included) Specifications: Easy to install RF output with good stability Simple pairing process Pairing Instructions: 1. Open the battery compartment as indicated by the arrow and install the coin cell battery correctly. 2. Connect the receiver input to the power supply, then press the receiver's learning button twice continuously. 3. Press the desired remote panel switch button once. 4. When the red indicator light on the receiver flashes and then turns off, pairing is successful. Reset Instructions: Press the learning button on the receiver eight times to delete existing data. Package Included: 1 x KR2201G-4 433MHz Receiver Module