[ Fingerprint Hotel Safe ] Performance index Operating voltage :4?1.5V AA battery power peak value:1W,0.5W average operating temperature (out )-10°C-75°C (inner)0°C-60°C identify speed :less than 2 seconds False rejection rate: 1/1000 False acceptance rate: 1/1000000 capacity: 100 fingerprints Specification&Size(mm):W420?D382?H220 Packing dimension(mm):W430?D435?H270 Gross weight(kg):20 Allocation:For laptop