Works with the HC-SR04 ultrasonic sensor in the 3 Pin Mode/4 Pin Mode, the Ping))) ultrasonic sensor in the 3 Pin Mode and the DHT temperature/humidity sensors for getting precise distance values. !

The SparkFun Ultrasonic Distance Sensor - TCT40 (sen-24805) a user-friendly upgrade to the popular HC-SR04 sensor, offers non-contact distance measurement from 2cm to 400cm with an accuracy of 3mm.

Abstract: Ultrasonic guided wave detection technology is one of the most effective damage identification methods in structural health monitoring (SHM), but external factors will cause errors during ...

Abstract: When a code disk of a displacement sensor is exposed to dust or other impurities, it causes distortion of the grating moiré fringe signal, and thereby provides wrong displacement information ...

Body Dimensions 167.3 x 76.7 x 7.8 mm (6.59 x 3.02 x 0.31 in) ...