Product Description
The UT371 Digital Tachometer is a non-contact RPM measuring instrument designed for accurate rotational speed and counting measurements. It uses a laser or LED light with reflective tape to measure speed without physical contact, ensuring safe and precise readings. It is widely used in motors, fans, machines, and industrial maintenance applications.
Key Features
- Non-contact RPM measurement using a laser/optical sensor
- Measures RPM and total counts
- Wide measurement range up to 99,999 RPM
- 5-digit large LCD for clear reading
- MAX / MIN / AVG measurement modes
- Adjustable sampling time for stable readings
- Data hold function for easy reading
- Auto power-off for battery saving
- Optional laser targeting for precise alignment
- Memory function for measurement stability
- Suitable for motors, fans, conveyors, and industrial machines
Specifications
- Product Type: Digital Non-Contact Tachometer
- Model: UT371
- Brand: UNI-T
- Measurement Range: 10 RPM to 99,999 RPM
- Count Range: 0 to 99,999
- Display: 5-digit LCD (max 99999)
- Accuracy: ±(0.04% + 2 digits) (typical range dependent)
- Target Distance: 50 mm to 200 mm
- Sensor Type: Photo diode + laser/LED reflection system
- Sampling Rate: Adjustable (approx. 0.5–255 sec)
- Functions: RPM, COUNT, MAX, MIN, AVG
- Auto Power Off: Approx. 15 minutes
- Low Battery Indication: Yes
- Power Supply: 4 × 1.5V AA batteries
- Operating Temperature: 0°C to 50°C
- Storage Temperature: -20°C to 60°C
- Body Size: Approx. 184 × 56 × 34 mm
- Weight: Approx. 100 g (without batteries)
- Application: Motor speed measurement, industrial machinery, HVAC systems, maintenance testing

