All items tagged with ultrasonic and Alarm (3)

PREMIUM

| Small, widely available and dirt-cheap ultrasonic sensors enable us to design both simple and lavish measuring devices for all kinds of rang...

PREMIUM

| This project achieves a measuring instrument with the following functions:

| EE 62 February 1986 CAR BURGLAR ALARM Although no alarm offers complete protection against theft, it will, none the less, deter most thieves...