Description Made of ABS material, strong, accurate and durable in use. Contact keypad password lock, no keys needed. Factory state: Management password: 1234, default home mode, When unlocked, the green indicator light will be on, and if the password is wrong, it will sound. Applicable to school, SPA/sauna bath center, swimming pool, gymnasium, golf course, supermarket, hotel, company, factory, household, business clue etc. Battery: button battery (included). Instructions: Enable public mode 1. Enter the correct 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 password 1. 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 every 3 seconds. *The temporary password can only be used effectively once, and it will automatically become invalid after use. Turn off public mode 1. Enter the correct 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 = 20mm. Color: as shown. Material: ABS. Size: 95 x 33 mm. Package Contents: 1 * Code Security Lock, 1 * Mounting panel, 1 * Mounting nut, 1 * Mounting screws. Only 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.