Biometric Smart Door Lock provides an anti-theft fingerprint lock with a touch keypad, which uses robust and safe anti-theft mortise with one latch and two deadbolts so that you can lock the deadbolt from both inside and outside for more security. It holds 100 capacity users. It provides various accesses for your convenience – fingerprint/password/card/mechanical key. Meanwhile, TL100 has a voice guide function that lets you know the operation status and how to operate each step for easier and more convenient use. ZKTeco TL100 should need a door (wooden) thickness of 45-60mm & for the power supply need 8 pieces of AA Alkaline battery. As a ZKTeco distributor in Bangladesh, we provide the best product with better support.