| Technical parameters: | 
| Operating voltage: 12V/23A | 
| Operating current: 10mA | 
| Static current: <1uA | 
| Operating frequency: 315MHz433MHz optional (other frequencies can be customized) | 
| Working chip: SCT2260(fixed code), EV1527 (learning code) | 
| Common resistance: 4.7m (SCT2260),270k(EV1527) | 
| Transmission distance: bbb500m (the sensitivity of the open ground receiving plate is more than -103dbm) | 
| Modulation method: ASK (amplitude modulation) | 
| Number of keys: 1, 2, 3, 4 (optional) | 










