Product Description: 1This non-contact tachometer is a professional and practical motor speed meter to measure the revolutions per minute(RPM) with a wide measuring range and high resolution. It's featured with high accuracy measurement, quick measuring time, and a long detecting distance of up to 500mm(20 inches). 2This tachometer is very easy to use by applying a reflective tape(included 3 in the package) on the target object, then aiming at the mark by the beam. This tachometer has a wide range of applications, such as measuring the rotating speed of machines, motors, wheels, lathes for metal or wood cutting work, electrical fans, paper making, plastic industry, chemical fiber, washing machines, car making, etc. 3No-Contact handheld digital photo tachometer with stable performance. 4Automatically record the MAX. value, Min. value, and Last value with low battery indication. 5Capable of measuring at a distance from 2-20in(50-500mm) with a large LCD display. 60.8 Second sampling time and 5-digit 18mm 0.7 inch LCD display with non-contact RPM measurement. Specifications: Output: less than 1mw Material: Hard shell ABS plastic LCD Size: L 50 x W 25mm Item Type: Non-Contact RPM Laser Photo Tachometer Net Size: L130 x W65mm Scan Diameter:17mm Use for: Measure the speed of lathe motors and machine Range: 2.5 to 99,999 RPM Product Weight: 79g / 2.80oz colour: Black + brown Note: 1. You must stick the reflective tape onto the target object before measuring. 2. Do not point the beam towards the eyes directly; safety eyewear is recommended. 3. Do not use it near explosive gases or in other potentially explosive areas. Package Contents: 1 * Digital Laser Photo Tachometer Non-Contact Rpm Tach(Not Include Battery) 3 * 20cm Reflective Stripes 1 * English Manual Note: This product comes without retail boxes, We will put it in a safe packaging