Coming with Hall sensor and magnet, this digital tachometer is characterized by high precision, fast response, good stability and strong anti-interference ability.It is a digital tachometer with measuring range of 10-9999RPM, power supply of 8-24V, current of 30mA. The external appearance adopts standard size, which is convenient to install and easy to use.It is made of plastic, electronic component and magnet material, and it is durable and anti-corrosive.The length of the tachometer is 7.9 cm, the width is 4.1 cm, the height is 2.1 cm. The length of the inductor is 6 cm, the width is 1 cm. The length of the sensor cable is 120 cm. The length of the magnet is 1 cm, the width is 0.2 cm.This digital tachometer can be applicable to various applications of RPM speed measurement.Item Name: Vehicle TachometerMaterial: Plastic,Electronic Component,MagnetAppearance Color: BlackLED Color: Blue, RedDisplay Mode: LED DisplayVoltage: DC8-24VCurrent: 30mAProximity Output Current: 20mA (for Sensor)Measuring Range: 10-9999RPMAccuracy: 0.1 Percenear Time: About 10 SecondsDisplay Refresh Rate:> 3 Times/Sec.Detection Range: 1 mm-10 mmWorking Temperature: -10 to 60 Degrees CelsiusFeatures: High Accuracy, Wide Application, Easy to InstallSize Details: Tachometer Size: 7.9cm x 4.1cm x 2.1cm/3.11" x 1.61" x 0.83" (Approx.)Inductor Size: 6cm x 1cm/2.36" x 0.39" (Approx.)Sensor Cable Length: 120cm/47.24" (Approx.)Magnet Size: 1cm x 0.2cm/0.39" x 0.08" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Vehicle Tachometer1 x Hall Sensor 1 x Manet