It's a QIACHIP 433 mhz Mini Wireless RF Remote Control 1527 EV1527 Learning code 433mhz Transmitter For Gate garage door Alarm Light controller.
Specification
Pin Description:
- : Negative power supply
+: Positive power supply, DC 3-24V
Pin Description:
- : Negative power supply
+: Positive power supply, DC 3-24V
K1: 1 short to Negative start transmitting data, Similar the A button on the remote control.
K2: 2 short to Negative start transmitting data, Similar the B button on the remote control.
K3: 3 short to Negative start transmitting data, Similar the C button on the remote control.
K4: 4 short to Negative start transmitting data, Similar the D button on the remote control.
ANT: transmitting antenna