UNI-T UT373 Non-Contact Tachometer
The UNI-T UT373 non-contact tachometer is a reliable tool for measuring the speed of engines and other machines, providing safe and accurate results without the need to contact a rotating object. The device allows measurement in RPM units, offering automatic range selection and displaying values up to 99999, with an overload indication ("OL"). The UT373 features Max/Min functions, data hold, active measurement indication (Signal Trigger/Laser-On), as well as low-charge indication and automatic shutdown. The backlit LCD display ensures readability in all operating conditions, while CE and UKCA certifications confirm high quality and safety standards.

Functionality that makes everyday work easier
The UT373 is designed for quick and easy operation - automatic range selection allows for immediate accurate results, while Max/Min functions help monitor extreme values during testing. The data hold function allows you to conveniently save the result on the screen, which is extremely useful when analyzing measurements. The tachometer indicates laser activity and low-charge status, ensuring uninterrupted operation without unnecessary interruptions.

Robust design and ease of use
The UNI-T UT373 features a lightweight, ergonomic design and the robustness required for industrial environments and laboratories. Thanks to the backlit LCD display, reading the results is possible even in poorly lit areas. Automatic shutdown of the device after a period of inactivity helps save energy and prolongs battery life. The UT373 is the ideal solution for professionals who value safety, accuracy and comfort every day.

Included
- revolution counter
- Batteries
- reflective tape
- user manual
Specifications:
| Manufacturer | UNI-T |
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| Model | UT373 |
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| Power supply | 3 × 1.5V battery (R03) |
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| Screen | 5-digit department code - maximum value 99999 |
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| Color | Red, gray |
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| Weight | 85 g (without battery) |
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| Dimensions | 183.8 × 56 × 34mm |
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| Speed measurement (RPM) | 10.0 ~ 9999.9 RPM (resolution: 0.1 RPM) |
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| Speed measurement (RPM) | 10000 ~ 99999 RPM (resolution: 1 RPM) |
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| RPM measurement | 0 ~ 99999 counts (resolution: 1) |
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| Accuracy: | RPM measurement: ±(0.04%+2); RPM measurement: ±1 |
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| Automatic range selection | Supported |
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| Automatic shutdown | Supported |
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| Low battery indicator | Built-in |
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| Active laser indicator | Supported |
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| Data reservation function | Supported |
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| Recording of maximum and minimum values (MAX/MIN) | Supported |
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| Toggle speed/count mode | Supported |
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| Overload marking | Supported |
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| LCD screen backlight | Built-in |
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| Refresh rate | 1 s to 7 s (for speeds >120 RPM: 1 s) |
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| Sensor type | Photodiode and laser tube |
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| Measurement distance | 50mm ~ 200mm |
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| Measuring angle | ±30° from the vertical axis |
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| Drop test | 1m |
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