Feature:

1. Working Power:3AAA batteries                                  
2. Standby current ≤ 305uA                   
3. Emission current:20mA                                                                  
4. Tag quantity that keypad support:50pcs 
5. Wireless Distance:≥80M(Open Area）                      
6. Wireless frequency:3433 MHZ/868Mhz                            
7. Shell material:ABS plastic                                                        
8. Working Temperature:-10℃-55℃  
9. Humidity:80%RH