Features High Accuracy Measurement - Utilizing advanced microcomputer and photoelectric technology, this device measures speeds from 60 to 40,000 RPM with exceptional precision Bright LCD Display - Features a large backlit LCD screen that ensures clear visibility, even in low light conditions, allowing for easy reading and adjustment of flash frequency Advanced Anti-Interference - Equipped with cutting-edge interference reduction technology, this meter accurately measures speed while detecting faults in moving objects for enhanced reliability Versatile Applications - Ideal for measuring the speed of motors, machine parts, and lathes, making it perfect for industrial maintenance, quality control, laboratories, and educational purposes Durable and Lightweight Design - Constructed from robust ABS material, this compact tachometer is designed for comfort and longevity, ensuring it can be easily held and transported during use Features: 1、Using microcomputer technology, photoelectric technology. The measuring range is 60？40000RPM/FPM, with high accuracy and digital reading. 2、Large screen LCD display with backlight, digital control to adjust the power supply of the flash frequency, the maximum display is forty thousand, providing accurate RPM readings. 3、Advanced technologies such as anti interference technology realize non speed measurement, as well as detection of the state and defects of moving objects. 4、It has a wide range of uses and can be used to measure motors, machine parts, lathes, etc. For general industrial maintenance, production, quality control, laboratories and schools. 5、The shell is made of ABS material, which is , strong, light in weight and long lasting. The whole is carefully designed and can be comfortably held in any hand. Specification: Item Type: Tachometer Material: ABS Color: As shown in the picture Model: DT2240B Battery: 1.5V AAx4 (not included) Application: Can be used to measure motors, machine parts, lathes, etc. Measuring Range: 60-40000RPM/FPM Speed: R/min FPM: F/min When the coarse/fine adjustment range is l than 1000RPM Coarse Adjustment: 10RPM/FPM Fine Adjustment: 0.1RPM/FPM ≥1000 rpm Coarse Adjustment: 100RPM/FPM Fine Adjustment: 1RPM/FPM Accuracy Rate: 0.05% Resolution: between1000RPM: 0.1RPM/FPM ≥1000RPM: 1RPM/FPM Time Base: 10MHz quartz crystal oscillator Display: 5 digit, LCD with backlight Maximum Display: Forty thousand Package List: 1 x Tachometer (Battery Not Included) 1 x Instruction Manual 1 x Case Package List 1 x Tachometer (Battery Not Included) 1 x Instruction Manual 1 x Case