3220 ^hot^ — Uni

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.

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

How to measure RPM safely, accurately, and without stopping your machines. uni 3220

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.

| Feature | Uni 3220 | Generic $20 Units | Fluke 931 | | :--- | :--- | :--- | :--- | | | 99,999 RPM | 30,000 RPM | 99,999 RPM | | Build Quality | Rubber armored | Hard plastic | Rubber armored | | Memory Recall | Yes (Last/Max/Min) | Usually only Max | Yes (Detailed stats) | | Price Point | $$ (Mid-range) | $ (Budget) | $$$$ (Premium) | The verdict: The Uni 3220 offers 90% of

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. Fix: You missed the tape

Disclaimer: Always wear appropriate PPE when working around rotating machinery. Remove loose clothing and jewelry.