Electric Bolt Lock with Key for Emergency Open.

• ✓ 4400 lb Holding Force for Maximum Security and Intrusion Resistance
• ✓ 16 mm Diameter Steel Bolt for Superior Door Protection
• ✓ Automatic Locking During Power Failures for Continuous Security
• ✓ 500,000 Operation Cycles Ensure Extreme Durability and Reliability
• ✓ Manual Key Override for Emergency Access When Needed
• ✓ Operates From -4°F to 140°F in Various Environmental Conditions