Technical Parameters
| Technical parameter | Parameter value | 
| Wireless signal | LORA | 
| Radio frequency | 410~439MHz | 
| Rate level | 0~5 | 
| Transmit power | 5~20dBm | 
| Communication Interface | USB | 
| Default baud rate | 9600 8 n 1 | 
| Power | DC5V 1A | 
| Running temperature | -30~80℃ | 
| Working humidity | 5%RH~90%RH | 
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