Electric Strike Working Principle:Electric strikes are generally called electric locks, and usually work with electromagnetic force generated by electromagnetic force. The Electric strike has two working modes: the power-off lock type, that is, in the case of no power, the lock tongue cannot be opened, and the power supply is unlocked; the power-off unlock type, that is, in the case of power-on, the lock tongue can be opened, and vice versa. Power on and lock.Features:1. 304 stainless steel bolt structure.2. The structural linkage is made of steel and hardened to resist severe impact.3. Can withstand 500KG thrust shock.4. Suitable for wooden doors, metal doors and PVC doors.5. The surface is made of high temperature painted metal paint, which is durable and beautiful.6. NC is normally closed, it needs to be powered off before opening; NO is normally open, need to be powered to unlock.Specifications:Type: NC Electric Strike, NO Electric Strike (Optional)Material: stainless steelWithstand tension: 500kg thrustInput voltage: DC12VOperating current: 200mA (NO); 200mA (NC)Safety type: Power-off lock (NO); Power-off unlock (NC)Applicable door type: wooden door, metal door, PVC doorSurface temperature: below ambient temperature +20 CApplicable temperature: -10~+55CApplicable humidity: 0~95%Size: 160 * 25 * 31mm / 6.3 * 1.0 * 1.2inWeight: Approx. 289gPackage List: 1 * Lock1 * Screw Kit1 * Manual