20pcs 4 Channel Wireless RF Remote Control Transmitter Receiver Module

Specification: Remote control: Operating voltage: DC 12V(27A / 12V battery x 1) Operating current: 10mA at 12V Radiated power: 10mW at 12V Transmission distance: 50m - 100m (open field, the receiver sensitivity of -100dbm) Transmitting frequency: 315MHZ Modulation mode: ASK (Amplitude Modulation) Encoder types: fixed code Decoding receiver board: Operating voltage: DC 5V Receiver sensitivity is -98dB Leg 7 bits: VT, D3, D2, D1, D0, +5V and GND VT is a valid signal high output pin upon receiving a valid signal, the pin output high, may also drive the relay Size: 6.6 x 22 x 41mm Note: There are four buttons on the remote control, and respectively correspond to the four data bits to the receiving board output pin D0, D1, D2, and D3. Press the buttons transmit signals, the corresponding data bit is output high. Package included: 20 x Remote control 20 x Decoding receiver board