... Motor: 24V brushless, 100W Temp: -20 ~70Celsius degree door --Anti-clamp function to make the mechanism more safe. ... --When working with battery, the door will keep open if there is no power. ... remote or function keypad: always open, half open, exit only, lock, normal open. --Working with electronic lock ... control, push button, access keypad, security sensor, fire alarm, and son on. door