ITEM NAME:4 Digital Led Tachometer Rpm Speed Measurement+Hall Proximity Switch Sensor D9X7 4 Digital Led Tachometer Rpm Speed Measurement+Hall Proximity Switch Sensor D9X7 The digital panel meter uses the latest A/D conversion chip,high stability reference IC and stick chip components, the circuit design is good for performance. It can be applied to the voltage and current measurement, but also can be an external sensor to measure temperature, pressure, displacement and other physical quantities. Suitable for a variety of digital instrument display. Product is of stability, high accuracy, anti-interference ability. The appearance of the standard size, easy installation. Colour:Show green Material:circuit board Size:7 * 2.5 * 4cm Package Contents: 1x tachometer 1x Hall switch sensor 1x bracket 1x cable 1x magnet
