Description
Product Overview
The Koparneed digital tachometer is a compact, handheld device designed for precise speed and rotation measurement. Featuring a 40mm, 5‑digit backlit LCD, it displays values from 10 to 99,999 RPM in photoelectric mode and counts up to 99,999 rotations. Built with ergonomic plastic housing, the unit weighs only 140 g and operates up to a 1000 mm non‑contact distance, ensuring safe testing of hard‑to‑reach components.
Usage
Ideal for automotive technicians, industrial maintenance crews, and DIY enthusiasts, this tachometer excels in engine diagnostics, conveyor belt monitoring, and equipment calibration. Its auto‑ranging function eliminates manual adjustments, allowing quick measurements in workshops, garages, and field environments.

Why Choose Us
Koparneed combines high‑precision optics with a rugged design, delivering ±0.05%+1 accuracy. The device undergoes strict quality testing and includes a rechargeable battery for extended use. Its lightweight form factor and intuitive interface reduce user fatigue and speed up troubleshooting.
Key Features
- Auto‑ranging 10‑99,999 RPM and 1‑99,999 rotation count
- Backlit 40mm LCD for clear reading in low light
- Non‑contact measurement up to 1000 mm
- ±0.05%+1 accuracy for reliable diagnostics
- Lightweight 140 g design for portable, on‑site use
FAQ
What is the measurement distance?
The tachometer can accurately read speed and rotation from up to 1000 mm away, making it safe for high‑speed or hot components.
How does auto‑ranging work?
The device automatically selects the optimal RPM range based on the detected signal, so you never need to set the range manually.
Is the device suitable for automotive use?
Yes, it is designed for engine diagnostics, belt speed checks, and other automotive applications, providing fast and accurate readings.
What power source does it use?
It includes a rechargeable lithium‑ion battery that offers several hours of continuous operation on a single charge.
Can it count rotations as well as measure speed?
Absolutely, the counting mode records up to 99,999 rotations, useful for maintenance schedules and equipment monitoring.




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