About this product 1. This password keypad is suitable for folding doors, that is, the swing door operator can be equipped with it as an access controller, because its buttons have left and right arrow directions and are suitable for left and right operation. doors. Note: This is only a stand-alone product and cannot be used without a matching universal receiver 2. The appearance adopts a waterproof design, with two colors to choose from, and the overall design is compact and practical. 3. Don't worry about not being able to see clearly at night. LED lights illuminate it, allowing you to quickly open the door when you return home at night. 4. If you forget to bring the remote control, it is also very convenient to enter the password. Specifications 1. Power supply: CR2032 lithium battery (230mAh) 2. Battery life: about 1 year, based on 10 uses per day. 3. Working frequency: 433.92MHz +/-75KH 4. Transmitting power: about 1mW 5. Encoding format: rolling code 6, standard format, working