5-Digit LCD Tachometer/Tester, Measures with or without, Speed ​​Sensor with Groove, Storage/min, Versatile Use, Power Prompt

1. Adopts advanced technologies to perform measurements with or without rotational speed and line speed. 2. The speed sensor with a groove easily measures the speed and length of wire, cable, and rope. 3. Automatically stores the maximum, minimum, and last measured values. 4. The photoelectric and contact sensor accessories can be interchanged at any time for versatile use. 5. Automatically prompts when the supply voltage is below the specified value. Specification: This item adopts microcomputer (CPU) and junction technology to create an instrument that combines phototach (RPM) and contacttach (RPM, m/min). Features: 1. Adopts advanced technologies to perform measurements with or without rotational speed and line speed. 2. The speed sensor with a groove easily measures the speed and length of wire, cable, and rope. 3. Automatically stores the maximum, minimum, and last measured values. 4. The tachometer and photoelectric accessories can be interchanged at any time for versatile use. 5. Automatically prompts when the supply voltage is below the specified value. 6. Large LCD screen for clear reading. 7. Wide measuring range and high resolution. Specification: Model: Measuring Range: Photoelectric Tachometer: 2.5 ~ 99,999 rpm Tachometer: 0.5 ~ 19,999 rpm Line Speed: 0.05 ~ 1999.9 m/min Resolution: Photoelectric Tachometer: 0.1 rpm (2.5 ~ 999.9 rpm), 1 rpm (over 1,000 rpm). Tachometer: 0.1 rpm (0.5 ~ 999.9 rpm), 1