Anti Theft Chain Lock with 110dB Vibration Alarm Keyless Water Resistant Hydraulic Resistant Motorcycle Digital Password Security Lock Black Item Type: Anti Theft Chain Lock Material: Stainless steel, alloy steel, ABS Battery Type: AAA battery (battery not included) Battery Quantity: 3pcs Initial Password: 1234 Battery Life: Standby mode, approximately over 8 months Steel Rope Diameter: Approx. 6mm/0.24in Steel Rope Length: Approx. 80cm/31.5in Operating Temperature: -20°C to +60°C Storage Temperature: -30°C to +80°C Features: 1. Vibration or movement of the lock body will trigger an immediate alarm 2. Cutting the steel rope or disassembling the lock body screws will trigger an immediate alarm 3. Three incorrect password entries will trigger an immediate alarm 4. Alarm sound reaches above 110dB 5. Steel wire rope diameter 6mm, length 80cm 6. Four digit password with 256 combinations 7. Lock/unlock key operating, no need for keys 8. Powered by 3 AAA batteries with low battery warning 9. IP44 water resistant, suitable for indoor and outdoor use 10. Can be used normally in temperatures ranging from -20°C to +60°C