About this product 1. This password keypad is suitable for folding doors, that is, the swing door operator can be equipped with it as access control, because its buttons have left and right arrow directions and are suitable for operating the left and right doors. 2. It has a waterproof design in appearance and there are two colors to choose from. It is compact and practical overall. 3. Don't worry about not being able to see at night. The LED lights illuminate it, allowing you to open the door quickly when you return home at night. 4. It is very convenient to enter the password if you forget to bring the remote control. Specification 1. Power supply: CR2032 lithium battery (230mAh) 2. Battery life: about 1 year, based on 10 uses per day 3. Operating frequency: 433.92MHz +/-75KH 4. Transmitting power: about 1mW 5. Coding format: standard Rolling Code format 6. Operating temperature: -20℃~+55℃7. Number of password digits: 0-8 digits 8. Launch distance: open distance 50 meters; indoor