Digital Tachometer Enhance your precision and efficiency with our Digital Tachometer, designed to accurately measure rotation speed, linear velocity, or frequency of motors. Ideal for use across various industries such as motor, fan, washing machine, automobile, and airplane sectors. Key Features: Laser-based technology for precise measurements. Wide measuring distance range from 50 to 200mm. Clear and easy-to-read LCD display with backlight. Supports both RPM and Count measurement modes. Records maximum and minimum value measurements. Additional features such as low battery indicator, data storage, and auto power-off function. Specifications: Color: Red + Black Material: ABS Display: LCD Backlight Display Measuring Distance: 50 ~ 200mm Measuring Range: RPM: 10 ~ 9999.9 r/min, 10000 ~ 99999 r/min COUNT: 0 ~ 99999 Resolution: RPM: 0.1 r/min, 1 r/min COUNT: 1 digit Accuracy: ±(0.04%+2) Power Supply: 3 * 1.5V AAA Battery (NOT Included) Operation Environment: 0~50°C / 32~122°F Storage Environment: -20~60°C / -4~140°F Item Size: Approx. 11.9 * 5.1 * 2.8 cm / 4.7 * 2 * 1.1 in Item Weight: Approx. 83 g / 2.9 oz Package Size: Approx. 17.8 * 6.4 * 4 cm / 7 * 2.5 * 1.6 in Package Weight: Approx. 117 g / 4.1 oz Packing List: 1 * Digital Tachometer 1 * User Manual (English)