Uni 3220 [updated] -

Press the red "Measure" button to turn the unit on. Ensure the LCD screen shows "LASER" on the left side.

If you work with motors, fans, conveyor belts, or any rotating machinery, you know the golden rule: That’s where the Uni 3220 becomes an indispensable tool in your toolkit.

The verdict: The Uni 3220 offers 90% of the Fluke's accuracy for 30% of the price. It is the "sweet spot" for serious DIYers and professional maintenance crews. Problem: Screen shows "0" or "---". Fix: You missed the tape. Angle the laser slightly so it hits the path where the tape will be, not where it currently is. uni 3220

If you maintain industrial motors, RC cars, or even bicycle wheels, this $40-$60 tool will pay for itself the first time you diagnose a failing bearing (overheating due to high RPM) or calibrate a variable frequency drive.

Hold the device 50mm to 500mm (2 to 20 inches) away from the rotating object. The laser spot should hit the reflective tape squarely. Press the red "Measure" button to turn the unit on

Mastering the Uni 3220: The Ultimate Guide to Your Contactless Tachometer

This compact, laser-guided tachometer allows you to measure Rotations Per Minute (RPM) from a safe distance. Whether you are an HVAC technician diagnosing a faulty blower or a hobbyist balancing a CNC spindle, here is everything you need to know about the Uni 3220. The Uni 3220 is a non-contact digital tachometer. Unlike old-school mechanical tachometers that required physical contact with a spinning shaft, this device uses a visible laser beam to measure reflective pulses. The verdict: The Uni 3220 offers 90% of

How to measure RPM safely, accurately, and without stopping your machines.