-25 - 65 ℃ Working environment humidity: 20% RG-90% RH Suitable for door thickness: Standard 35mm-65mm / 1.37 - 2.55in, other sizes require customized accessories Lock body: 6070 bolt Scramble code: 15 digits total Working voltage: 4.8-6.2V Product color: Black, Black Gold (Optional) Description: Add Fingerprint/Temporary Passcode: Click "Member Management", select Member, and then click "Add". Place finger on the recognition area 5 times following the voice prompts. Note: Every time place finger, fine adjust the position of finger to ensure that fingerprint is fully recorded. Select "Temporary Code", and 4 types of passcodes for your choice, "Time Limited", "One-time", "Dynamic" and "Custom". Passage Mode: Close "Auto Lock", and unlock the lock once, Passage Mode is on. Open "Auto Lock" and unlock the lock once, Passage Mode is off. Note: After Passage Mode is on, anyone can unlock the lock without any permission. Reset Lock with App: Click " Remove Device", and click "Confirm" to delete and reset the lock from APP. Note: If the lock is offline, you need to slide your finger on the main interface to make the lock online. Reset Lock with Reset Hole: 1. Take the front handle down, then disassemble it and change the lock by USB interface 2. Press the RET reset hole lightly for 4s with a small object (such as a ballpoint pen), we will hear beep sound every second. Release it when the sound of beeps stops. The system will automatically restore the factory Settings within 5 seconds, and the voice message will indicate that the factory Settings have been restored successfully. Packing List: 1 x Front Handle 1 x Rear Handle 1 x Lock Body 7 x Screws 2 x IC Card 2 x Mechanical Keys 1set x Tools 1 x Packing Box 1 x Manual