Dental Suction is device that is used to suck out unnecessary liquid in treatment process in the mouth. Dental suction tool has smaller negative pressure which aims to not damage soft tissue in mouth area. Suction usually use analog for pressure monitoring which have potention pressure misreading. One of the innovations made by author is Dental Suction with digital pressure monitoring using MPXV4115C6U5V sensor. MPXV4115C6U5V is a sensor that is used to measure air pressure by utilizing pressure reading into the motor that user is expected be able to make pressure readings during desludging process more efficiently. Data collection method used is compare of average measurement of module reading with measurement of suction pump calibrator reading, namely a digital pressure meter with many tests of 20 times on 7 pressure parameters (27 mmHg, 100 mmHg, 200 mmHg, 300 mmHg 400 mmHg, 500 mmHg, 563 mmHg) the highest correction value is at a maximum pressure of 562 mmHg-563 mmHg is 2.65 mmHg. Ultrasound switch response testing found an accuracy of 100% with 0% deviation in experiments with maximum distance of 20 cm from device, which serves to turn on and turn off motor in standby position.