Keyless alarm smart bike lock with 110dB alarm, IP44 waterproof, anti-theft chain lock for motorcycle/door/gates/bicycles

1. Immediate alarm when the steel cable is cut or the locking screw is removed. 2. Immediate alarm when the lock is shaken or moved. 3. Immediately call the police if you enter your password incorrectly three times. 4. Pulling the metal cable can be used as a defensive whip; metal cable diameter 10 mm, length 80 cm. 5. Four-digit passwords with 256 possible combinations.

Specification:

Features: Immediate alarm when the steel cable is cut or the locking screw is removed. Immediate alarm when the lock is shaken or moved. Immediately call the police if you enter your password incorrectly three times. Pulling the cable can be used as a defensive whip; cable diameter 10 mm, length 80 cm. Four-digit passwords with 256 possible combinations.

Lock/unlock button operation, no key required. Powered by three AAA No. 7 batteries, 8 months of standby time and low power indicator. IP44 waterproof rating, suitable for indoor and outdoor use. Can be used normally in temperatures ranging from -20°C to +60°C. Over 110 decibels of audible alarm. Specifications: Power supply: three AAA batteries (not included) Battery life: standby mode, approximately 8 months or more Steel cable specification: 10 mm diameter, 80 cm length Chain specification: 6 mm in diameter and 80 cm in length Operating temperature: -20°C ~ 60°C Storage temperature: -30°C ~ +80°C Size: 9.2*5.5*3.4cm/3.6*2.2*1.3in Package Weight: 300g/10.6oz Package List: 1 * Lock (batteries not included) 1 * Screwdriver 1 * User Manual