【Electronic Bolt Lock】There are 2 elements, the \"fixed\" part painted in black and the metal hook. We have to slam the door shut to close it and put 12v on the wires to unlock. The electromagnetic lock is mainly carbon steel material, the lock hook can withstand 150kg pull.

【Wiring Precautions】The lock must not be powered for more than 3 seconds and the voltage should be 12V 2A. If you use a relay with a digital code and when you unlock, everything turns off. Since the power supply is not powerful enough, you need to power the coil separately or put a dedicated power supply on the lock.

【Open via Intercom】The lock can be opened via intercom with a little DIY. You just need to send a 12v and 2 amp pulse, so provide a small relay in case of power failure with a 12v 3 amp power supply. Perfect for securing cabinets so children don't get access.

【Energy Saving and Long Life】Shockproof, puncture-proof and anti-theft. Mechanical life, when designing the load condition, about 500,000 times. Suitable for doors from 0.5 to 4 kg.

【Easy to Use】Electromagnet lock for easy installation, without restrictions on left, right, front, back and position allows mechanical flap locking. Built-in unlock status detection. Size approx. 5.7 x 7.2 x 1.3 cm. Application for delivery cabinets, refrigerators, mailbox or newspapers, self-service cabinets, counter.