ULAC Tron-XD Fingerprint Shackle Lock

This ULAC Tron - XD is an advanced biometric fingerprint shackle lock. It offers rapid 0.5 - second unlocking and can store up to 20 fingerprints. With a high - capacity lithium polymer rechargeable 420mAh 3.7V battery, it can open up to 2200 times on a full charge and at least 150 times on low charge. In case of low battery or malfunction, you can unlock it with high - security Abloy keys (2000 unique key combinations) or use the emergency Micro USB charge. The integrated silicon overmoulded design and lightweight alloy shackle make it durable and rainproof. It won the iF Design Award 2018. The inner shackle dimensions are 74mm x 128mm (2.9in x 5in), and it weighs 566g (1.24lbs). Fingerprint identification complies with ANSI / INCIT 378 and ISO/IEC 19794 - 2. Operating temperature ranges from - 20°C to 45°C (- 4°F to 113°F). Note that although it's rainproof, severe weather may damage it, so use with caution.

Using this ULAC Tron - XD fingerprint shackle lock is easy. First, charge the battery fully before the first use. Then, you can enroll up to 20 fingerprints. When you want to unlock, just place your finger on the sensor and it'll open in 0.5 seconds. If the battery is low or there's a malfunction, you can use the included Abloy key to unlock it or connect a portable charger via the Micro USB port for a temporary charge. As for maintenance, keep it dry and clean. Avoid exposing it to extreme temperatures outside the - 20°C to 45°C range. Remember, even though it's rainproof, don't let it stay in severe weather conditions for too long as it may cause damage.