UNI-T UT371 Advanced Non-Contact Laser Tachometer

UNI-T UT371 Advanced Non-Contact Tachometer in Sri Lanka

Optical Laser RPM Meter for Motors and Rotating Machinery

The UNI-T UT371 Advanced Non-Contact Laser Tachometer is a handheld optical instrument for measuring rotational speed without contact. It uses a laser and reflective tape to measure RPM on motors, fans, pulleys, shafts and other rotating equipment, making it useful for maintenance, commissioning and performance checks in Sri Lanka.

Explore our complete selection of tachometers and RPM meters in Sri Lanka to compare non-contact and dual-mode models.

The UT371 measures 10 to 99,999 RPM and includes MAX, MIN and average readings, data hold, adjustable sampling time and a 5-digit LCD with RPM/count and time display. Its 50–200 mm target distance is suitable for close-range inspection of accessible rotating components.

Technical Specifications

Measurement Type

Non-contact optical laser tachometer

RPM Range

10–99,999 RPM

Count Range

0–99,999 revolutions

Accuracy

±0.03% (10–99 RPM); ±(0.04% + 2 digits) from 100 RPM upward

Target Distance

50–200 mm

Sampling Time

Adjustable, approximately 0.5–255 seconds

Display

5-digit LCD; RPM/count and time dual display

Measurement Functions

RPM, revolution count, MAX/MIN/average, zero, data hold

Auto Power-Off

Approximately 15 minutes

Power Supply

4 × 1.5 V AA batteries

Size and Weight

184 × 56 × 34 mm; approximately 100 g excluding batteries

Key Features

Non-Contact Laser Sensing

Measures RPM from reflective tape without touching or slowing the rotating part

Wide Measurement Range

Covers low-speed equipment through high-speed rotating machinery

MAX, MIN and Average Readings

Helps review speed variation during run-up, load changes or repeated tests

Adjustable Sampling Time

Supports both quick spot checks and longer stability observations

Data Hold

Freezes the displayed value for easier recording

RPM and Count Modes

Measures rotational speed or counts revolutions for suitable applications

Applications

• Motor, pump, fan and blower RPM verification
• Machine-tool spindle and rotating-shaft speed checks
• Pulley and belt-drive speed comparison
• Preventive maintenance and equipment performance trending
• Workshop and industrial diagnostics where reflective tape can be applied

Important Buying Guidance

The UT371 is designed for non-contact RPM and revolution-count measurement only. It needs a reflective tape marker and should be used within its 50–200 mm target-distance range. If your work also requires direct shaft contact, surface-speed measurement or access to recessed components, consider the UNI-T UT372D Contact & Non-Contact Tachometer.

Package Includes

• 1 × UNI-T UT371 Advanced Non-Contact Laser Tachometer
• Reflective tape
• 4 × 1.5 V AA batteries
• English user manual

Downloads

📄 Download UNI-T UT371 Data Sheet
📄 Download UNI-T UT371 User Manual