1、High quality zinc alloy lock body, durable and reliable. 2、Fingerprint identification unlock, can store 20 fingerprints, very convenient. 3、Advanced CPU chip. Good identification, low misjudgment rate. 4、Waterproof grade up to 1P65, effectively prevent rain and dust. 5、1 second unlocking, long standby time, low power consumption. Features: High quality zinc alloy lock body, durable and reliable. Fingerprint identification unlock, can store 20 fingerprints, very convenient. Advanced CPU chip. Good identification, low misjudgment rate. Waterproof grade up to 1P65, effectively prevent rain and dust. 1 second unlocking, long standby time, low power consumption. After full charged can provide 3000 switch lock operation. Specification: Material: Zinc alloy (lock body), 303 stainless steel (lock beam) Weight: Approx. 181g/ 6.4oz Color: silver Lock body: pearl chromium on the surface (after 24 hours of salt spray test) Lock beam: stainless steel (48 hours salt spray test) Unlock mode: fingerprint unlock Receiving sensitivity: -90dbm Battery :150mA lithium battery Working range: low temperature -20 degrees high temperature 70 degrees. Operating voltage: 3.4V- 4.2V Charging mode: rechargeable, non-replaceable battery. Battery life: standby for 180 days (unlock 5 times per day on average), and unlock more than 3000 times continuously Waterproof performance: IP65 Operating temperature: -20℃ ~ +70℃ (can be adjusted to -40℃~ +85℃ according to customer demand) Working humidity: 5% ~ 95% (no condensation) Tension of locking beam: vertical tension 120kg, lateral tension 200kg Drop test: 1.5m high falldown (not open) does not affect the use. Size (L*W*H): 70 * 42 * 18mm / 2.8 * 1.7 * 0.7in Package list: 1 x Fingerprint Padlock 1 x Instruction 1 x USB CableNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.