Product material: The shell is made of metal plate, and the internal parts are precision-cast carbon steel Working mode: Locking when closing the door when power is off, unlocking is triggered when power is on Mechanical life: Under design load conditions, more than 500,000 cycles Surface treatment: Design load plating with electrophoretic paint (neutral salt spray test for more than 500 hours) Ambient temperature: Suitable for high temperature +60°C and low temperature -40°C Safety: The lock hook can withstand 150 kg pulling force without obvious permanent deformation; it has anti-vibration and anti-pry performance Product installation: Compact size, easy to install, no left/right or polarity restrictions; includes a mechanical emergency unlocking position Electromagnet life: More than 1,000,000 cycles under rated working conditions Self-elastic design: Adjustable elasticity, suitable for self-elastic doors weighing 0.5–4 kg Color: Black Material: Metal Package Contents: 1 set × Electromagnetic lock Only the above package content, other products are not included Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. Measurement allowed error is ±1–3 cm