①. Made of ABS material, strong, accurate, safe and durable in use. ②. Contact keypad password lock, no keys needed. Cool to use. ③. 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. ④. Applicable to agent, school, SPA/sauna bath center, swimming pool, gymnasium, golf course, supermarket, hotel, company, factory, household, business clue, etc. ⑤. Battery: button battery (included). ⑥. 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...". ⑦. Maximum installation thickness: L = 20mm. ⑧. Colour: black. ⑨. Material: ABS. ⑩. Size: 95 x 33 mm. ⑪. 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. ⑫. 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.