Wolf Guard TT01 Rain Proof Smart Door Lock

FOR OUTDOOR: Waterproof Level: IP57; Operating Temp Range: -20℃～50℃, SIMPLE DIY INSTALLATION: Supported door thickness: 30-60mm. Install in about 20 minutes with a screwdriver and a drill, and follow the vido instruction to easily install Smart Door Locks, LOW BATTERY WARNING: Smart Lock or APP will remind you to replace the battery.You could temporary charging your keyless door lock by using a power bank, KEYLESS ENTRY DOOR LOCK: Lock and unlock with Smartphone, Keypad, and Mechanical Key. Control keyless access and keep track of who comes and goes, all from your phone. You'll have comfort in knowing your door's status, CONTROL ACCESS FOR ANYONE: Grant access for a few weeks, a few hours, a few minutes, and revoke them again whenever you need to. It's up to you. Give a temporary codes to guests, visitors, housekeepers or employees. Never worry about lost, stolen or copied keys again