Nunafey
Electronic Security System
Electronic Security System By Nunafey
300mA Magnetic Reed Switch, No Need External Power, Window Door Contact Sensor, Durable Practical Wired Home Security Office for Home Alarm System Home - Product Features
- Magnets are usually close to each other, which is normal.
- Close = short circuit = create a path for the current.
- The magnets are close together and the switch is off.
- And the switch and magnet are separated, and the switch is open.
- No external power supply is needed, and the GND and N.C ports of wired or wireless alarm control panel are directly connected.
Security Door Lock, Fingerprint Password Moisture-Proof with Mechanical Key Electronic Door Lock, Waterproof Smart Door Lock for Home(Open Left) - Product Features
- Adopts advanced fingerprint recognition, non-contact card and password as the door opening key, multiple door opening modes are available, which is more flexible, convenient and safe.
- Add and delete fingerprints and passwords based on unlock number management.
- Can use fingerprint, IC card, password, mechanical key to open the door.
- Aiming at the security protection and modern management requirements of residences, offices, and smart communities, we have introduced fingerprint + card + password door lock modules.
- When the battery is dead, the USB emergency power supply can open the door.
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