1、Universal remote control switch 433Mhz, 12V/24V relay module, and 2 channel, with high sensitivity, stable performance and small size. 2、High quality wireless control module, and 2-button remote control, are reliable and convenient to use. 3、With strong wireless signals, it can pass through wall, floors and doors well, no worry about the distance. 4、100~200m Launch remote control distance (in an open area). Can use the transmitter (remote control) to turn the receiver on or off from anywhere reliable. 5、Scope of application: remote control power switch, anti-theft alarm, remote control electric door lock, remote control electric shutter door and window, water pump remote control, industrial control products, etc. Features: Universal remote control switch 433Mhz, 12V/24V relay module, and 2 channel, with high sensitivity, stable performance and small size. High quality wireless control module, and 2-button remote control, are reliable and convenient to use. With strong wireless signals, it can pass through wall, floors and doors well, no worry about the distance. 100~200m Launch remote control distance (in an open area). Can use the transmitter (remote control) to turn the receiver on or off from anywhere reliable. Scope of application: remote control power switch, anti-theft alarm, remote control electric door lock, remote control electric shutter door and window, water pump remote control, industrial control products, etc. Specification: Material:ABS plastic Color: as picture shown Wireless Switch Module Working Voltage: 12V, 24V (optional) Static Working Current: ≤6mA Working Temperature: -400℃ ~ +800℃ Receive Sensitivity: -114dBm Working Frequency: 433MHz Remote Control Distance: 100~200m Wireless Remote Control Working Voltage: DC12V Working Current: 9~12mA Operating Frequency: 433MHz Transmitting Power: 10~15mw Transmitting Distance: 150m (in an open area) Frequency Deviation: ±0.2MHz Code Chip: PT2262 (fixed code), EV1527 (learning code) Oscillation Resistance: 4.7M Number of Buttons: 2 buttons Modulation Method: ASK Quiescent Current: 0uA Package List: 1 * Remote Control 1 * Module Note: Please notice that the list does not contain instructions. Please contact if necessary.