Suitable for office buildings, stainless steel doors, steel doors, wooden doors, fireproof exit doors, and main access doors of communities. Mortise-mounted design with an attractive appearance, large lock striker, and wide application range. Embedded installation, made of high-quality materials with advanced processing technology for electromagnetic components. No residual magnetism during extended operation, ensuring long-term durability. Locking time is determined by power-on duration. Easy to install, durable, and user-friendly. Double unlock mode: switch up (power off / NC), switch down (power on / NO). High strength and hardness, constructed from thick stainless steel with built-in copper coils. Special design allows easy adjustment of the lock tongue distance. Item Type: Electric Strike Door Lock Lock Tongue Structure: Zinc alloy die-cast Holding Strength: 300 kg thrust Voltage: DC 12 V Current: 12 V / 280 mA Adjustable Lock Tongue Suitable For: Wooden doors, metal doors Surface Temperature: Up to 20°C above ambient temperature Operating Temperature: -10°C to +55°C (14°F to 131°F) Operating Humidity: 0% to 95% RH Lock Body Treatment: High-temperature finish Security Type: Fail-secure (locks when power is off) Color: Silver Material: Metal Dimensions: 11 x 2.5 x 3 cm Package Includes: 1 x electric strike door lock Note: Light reflection and display differences may cause slight color variation between the image and the actual product. Measurement tolerance: ±1–3 cm.