Made of ABS material, strong, accuracy, safe and durables in use. Contact keypad password lock, no keys needed. Cool to use. Factory state: Management password: 1234, default home mode, When the green is unlocked, the indicator light be on, and if the password is wrong, it sound. Applicable to agent, 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. the OK button again for more than 2 seconds, the lock flashes, the OK button again. 3. Enter the numbers "4, 4" and the "OK" button, "di .." a long beep. Set temporary password 1. the OK button, the unlock indicator flashes. 2. Enter the 4~15 password to be set. 3. the OK button, the buzzer beep for a long time, and the lock be opened and stored. The temporary