<p>Large measuring range (from 2.5 to 99999 RPM) and high resolution (from 0.1 to 1 or 1 RPM).</p> <p>Automatically record the MAX. value, MIN. value and Last value with low battery indication.</p> <p>Capable of measuring at a distance of 2-20in (50-500mm) with a large LCD display.</p> <p>0.8 Second sampling time and 18mm 5-digit LCD display with non-contact RPM measurement. Non-contact digital photo tachometer with stable performance.</p> <p>Widely used: Usually can be used in the field of motor, wheel, lathe for metal or wood cutting work, electric fan, paper making, plastic industry, chemical fiber, washing machines etc.</p> <p>Specifications:</p> <p>Color: Dark Gray Material: ABS PLASTIC</p> <p>Display: 18mm (0.7") 5-digit LCD display Measuring range: 2.5RPM - 99.999RPM</p> <p>Resolution: 0.1RPM at 2.5-999.9RPM, 1RPM at 1000-99.999RPM</p> <p>Accuracy: ± (0.05% + 1 digit)</p> <p>Measuring distance: 50-500mm / 2-20in</p> <p>Time Base: 6MHz Crystal Oscillator</p> <p>Test Range Selection: Automatic Switching</p> <p>Sampling Time: 0.8s (over 60 rpm)</p> <p>Function: Display Last Value, MAX Value, Min Value</p> <p>Power Supply: 1 * 9V 6F22 Battery (NOT included)</p> <p>Power Consumption: About 30mA</p> <p>Operating Temperature: 0℃-50℃ (32℉-122℉)! 130 * 70 * 29mm / 5.12 * 2.76 * 1.14in! Product Weight: 79g / 2.80oz! Package Size: 15 * 9.3 * 5cm / 5.91 * 3.62 * 1.97in 5.91 * 3.66 * 1.97in! Package Weight: 113g / 4.00oz! !</p> <p>Note:</p> <p>1. You must stick the reflective tape onto the target object before measuring.</p> <p>2. Do not point the laser beam directly at your eyes; safety glasses are recommended.</p> <p>3. Do not use it near explosive gases or in other potentially explosive areas.</p> <p>Package List:</p> <p>1 * Digital Tachometer</p> <p>3 * Reflective Tape Marks 1 * User Manual (English)</p> <p>1. You must stick the reflective tape onto the target object before measuring.</p> <p>2. Do not point the laser beam towards your eyes directly; safety eyewear is recommended.</p> <p>3. Do not use it near explosive gases or in other potentially explosive areas.</p> <p>Package List:</p> <p>1 * Digital Tachometer</p> <p>3 * Reflective Tape Marks</p> <p>1 * User Manual(English)</p>