Made of ABS material, strong, accuracy, safe and durables in use.Contact keypad password lock, no keys needed. Cool to use.state: Management password: 1234, default home mode, When the green is unlocked, the indicator light will be on, and if the password is wrong, it will sound.Applicable to agent, school, SPA bath center, swimming pool, gymnasium,golf course, supermarket, hotel, company, , household, business etc.Battery:button battery (included)Instructions:Enable public mode1. Enter the management password "****+OK" key, the buzzer "di..." a long beep, the unlocking light is always on.2. Press the OK button again for more than 2 seconds, the lock flashes, press the OK button again.3. Enter the numbers "4, 4" and press the "OK" button, "di .." a long beep.Set temporary password1. Press the OK button, the unlock indicator flashes.2. Enter the 4~15 password to be set.3. Press the OK button, the buzzer will beep for a long time, and the lock will be opened and stored. The temporary password is set successfully. After entering the standby state, the light of the electronic lock will flash 3 seconds.*The temporary password can only be used effectively , and it will automatically become invalid after use.Turn off public mode1. Enter the management password "+OK" key buzzer "di..." a long beep, the unlocking light is always on.2. Press the "OK" button again for more than 2 seconds, the lock flashes, press the OK button again.3. Enter the numbers "4, 3" and press the "OK" button, a long beep "di...".Maximum installation thickness: L = 20mmColour: blackMaterial: ABSSize: 95 x 33 mmPackage Contents:1 * Code Security Lock1 * Mounting panel1 * Mounting nut1 * Mounting screwsOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +- 1-3cm.