Waterproof Details Description: 1). Waterproof mask 2). Waterproof silicone pad 3). The Motherboard inside fully filled with waterproof glues. 4). Battery compartment with rubber sleeve.<br><br> Specification: Material: Zinc Alloy <br> Available color: Black<br> Panel Sizes: 168(mm)*34(mm)*60(mm) <br> Unlock modes: Fingerprint /Password /IC Card / APP / Mechanical Key Supported<br> app name: TTLOCK app <br> Fingerprint recognition time: 0.25S<br> Fingerprint Users: 100pcs <br> Card Users: 100pcs <br> Password Users: 100pcs <br> Power supply: 4pcs AA battery or 12V DC <br> Operating temperature: -25 to 55 Centigrade<br> Suitable door thickness: 20-80mm( Wooden door, Steel door, Iron door, other metal doors) <br> Emergency Charging: Mircro USB port <br><br> TTLock App Functions: 1. Open the Phone Lock App Remotely<br> 2. Add fingerprint, password, IC card, ekey in the phone app, no need to operate on lock<br>. 3. Send temporary password/ekey unlock remotely<br> 4. Save, unlock records<br> 5. Connect to the bluetooth lock<br> 6. If you add G2 gateway that can connect to Wi-Fi, you can delete users, open locks, checking unlock logs remotely without distance limitation. (Gateway buy extra).