4 Digital LED Tachometer, Digital RPM Tachometer Speed Meter + Hall Proximity Switch Sensor for Measuring Temperature & Pressure, Red/Blue(Blue)

HIGH QUALITY-- Digital LED tachometer uses the latest A/D conversion chip and the high stability benchmark IC, and adopts high quality other electronic components for long lifespan. Safe circuit design and simple construction for easy wiring. WIDE APPLICATION-- Tachometer can be widely used for measuring temperature, pressure, displacement and other physical quantities via the measurement of voltage, current and external sensor. It is suitable for all kinds of digital instrument display. LARGE LED DISPLAY-- The meter is equipped with large 4 digital LED display which can show clear measuring results. There are two types of LED display for your choice: red or blue. GOOD PERFORMANCE-- Speed meter has the of high security, good stability and strong anti-interference ability. It can display the measurement data quickly and accurately., Weight: 0.18 pounds, Manufacturer: Walfront