1. 4 channel relays 2. 100 working distance 3. learning code 4. 4 control mode 5. singnal can pass through doors walls floor

Feature:

Wireless control, easy to installControl Lights, Motors, Fans, electrically operated Doors/ Locks/ Windows/ Blinds/ Cars or Other Appliances with voltage AC110~240V or DC0~28V.You can turn on/off the receiver with transmitter (remote control) from any place within a reliable distance; the wireless signal can pass through walls, floors and doors.The receiver has farther working range with external telescopic antenna!Reliable control: The transmitter (Encoding) and the receiver (Decoding) use 8 bit code.One/several transmitters can control one/several receivers simultaneously.If you use two or more receivers in the same place, you can set them with different codes.Transmitting Frequency: 315MHz / 433MHz

Receiver:

Model No.: S4C-DC09 / S4C-DC12 / S4C-DC24Channel: 4 CHControl Modes: Toggle, Momentary, Latched, Toggle + MomentaryCoding Type: Fixed code or Learning codeCoding Setting: By learningPower Supply (Operating Voltage): DC12V±1V (S4C-DC12), DC9V±1V (S4C-DC09), DC24V±1V (S4C-DC24)Working Voltage Range of Relay: AC110~240V or DC0~28VPCB size: 68mm x 48mm x 20mmCase size: 75mm x 55mm x 30mmStatic Current: ≤6mAMaximum Power: 4A / each channel

Transmitter:

Model No.: C-4Channel: 4 CHRemote Control Distance: 100m / 300ft (theoretically)Encode: Fixed code by solderingUnit size: 58mm x 39mm x 16mmPower Supply: 1 x 23A -12V battery (included, can be used for 12 months)