Description YS-27 Hall Speed Counting Detection Sensor YS-27 Hall Speed Counting Detection Sensor can be used to detect the number of revolutions per minute on the engines, to detect whether a door is closed or not, or to others in your creative projects. This module contains an integrated LM393 comparator circuit to generate a digital output rather than an analog output. The reference voltage for the module can be set by a potentiometer. This module also has a mounting hole. – support 5 V / 3.3 V voltage input – on-board signal output, the output signal is effective instruction low level and at the same time, the output signal lights out can be directly and single-chip microcomputer IO connection. – signal detection sensitivity can adjust. -reserve all the way more circuits (P3 voltage drawn). Package Included: 1 x Speed Measurement Hall Sensor
