1. Material: metal 2. High sensitivity of opening/closing 3. Strong and durable without rusting 4. Small opening noise, safe and reliable 5. Stable large circuit board, wiring neatly 6. Without remote control, remote control to be purchased separately 7. Can delete some lost user card at will 8. Simple installation, easy operation, high reliability 9. Set up access control host and spirit machine lock integration 10. Automatic locking after closing the door, open the door state with sound and light prompts 11. With automatic lock status check function, automatic correction of misoperation 12. Strong motor power, fast unlocking time, smooth and not stuck 13. Function: can be used with building intercom, access control systems and other supporting 14. Working principle: power induction lock, not through only manual lock 15. Applicable door type: left open, right open, inside open, outside open various door types 16. RF card to open the door response time is less than 0.5S, read the card distance of 20mm 17. Remote control door opening response time less than 0.3S, barrier-free distance greater than 100m 18. Alarm output current less than 1500mA, alarm accuracy: greater than or equal to 99.9% 19. Input voltage: DC12V+20%, quiescent current less than 80mA, action current less than 350mA