Description

1. A Hall element to detect the number of motor and the motor speed measurement, thereby removing the current trip switch and no cases detected, the structure is simple, reliable performance. 2. To close the set of adjustable, the resistance will rebound; 3. *4V DC motor, low noise operation; 4. Can be activated burglar alarm function; 5. Superheterodyne receiver-free-circuit, **3.*2 MHZ, other frequencies can be customized. 6. PWM technology used to achieve a soft start and stop (the slow start and slow to stop), to protect the electrical and door to prevent damage . 7. Use rolling code (or jump yards) remote launch technology.