Easy Installation Features a standard lock design that US residential doors. No drilled hole and lock smith required. All you need is just a screwdriver. For better use, please refer to the installation manual. Anti-peep Door lock when someone tries to snoop your password, you can enter random numbers before and after the correct password to confuse the judgment. No need to worry about information leakage or changing your password. Low Energy Consumption Use 4 AAA batteries for up to a year, don't worry about the batteries and learn to enjoy convenience. APP unlock If you have a bad memory, app unlocking is a great option.You can download the WELOCK app from the Apple Store and Android Store, using the app to unlock the door requires Bluetooth to be turned on. Temporary Code If a visitor needs to enter your home, you can set a temporary code and set his effective time, after which the code will expire. No gateway is required to set up a temporary code, and it can be set up from anywhere. IC Card unlock ( 13.56MHz ) If you have a bad memory, IC Card unlock is a great option.One lock supports 20 IC cards, and one IC card can be used for multiple WELOCK smart locks. Automatic Locking You can set 5-14s lock time. After the door knob is locked, The Door Knob automatic Locking and can be rotated 360°. Cannot be opened by brute force. This will be more secure. Included Components WELOCK smart lock, Bolt Assembly, Mounting Hardware, Installation Manual, 2 keys, 3 RFID chip card WELOCK Smart Door Knob WELOCK Smart Door Knob (black) WELOCK Deadbolt Smart Door Lock 2.0 WELOCK Deadbolt Smart Door Lock 1.0 WELOCK Keyless Entry Door Lock with Handle WELOCK Smart WiFi Gateway Add to Cart Buying Options Buying Options Buying Options Buying Options Buying Options Customer Reviews 3.8 out of 5 stars 691 3.8 out of 5 stars 691 3.8 out of 5 stars 691 3.4 out of 5 stars 28 3.4 out of 5 stars 28 3.4 out of 5 stars 18 Price $89.99$89.99 — no data — no data — no data — no data — no data Mechanical Key Unlock ✓ ✓ ✓ ✓ ✓ / IC card Unlock ✓ ✓ ✓ X ✓ / APP Bluetooth Unlock ✓ ✓ ✓ ✓ ✓ / APP Bluetooth Unlock Distance 16.4 FT 16.4 FT 16.4 FT 16.4 FT 16.4 FT / Waterproof level IP44 IP44 IP44 IP44 IP44 / Operational Temperature Range -22℉ - 158°F ( 30°C - 70°C ) -22℉ - 158°F ( 30°C - 70°C ) -22℉ - 158°F ( 30°C - 70°C ) -22℉ - 158°F ( 30°C - 70°C ) -22℉ - 158°F ( 30°C - 70°C ) / for front door? front door with eaves front door with eaves front door with eaves front door with eaves front door with eaves /