Home ONOSOKKI HT-3200 High Accuracy of + / - 0.1 rpm Contact Type Tachometer
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ONOSOKKI

HT-3200 High Accuracy of + / - 0.1 rpm Contact Type Tachometer

Precision You Can Trust
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The Ono Sokki HT-3200 is a compact handheld digital tachometer designed for accurate contact measurement of rotational and tangential speeds. With a measurement range from 0.5 to 10,000 r/min, built-in memory, and a large LCD display, it is ideal for precision testing in workshops, production lines, and maintenance applications..

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  • Detail
  • Special Features
  • Specification

The HT-3200 is built for fast and reliable RPM measurement using a contact method. The device comes with interchangeable tips for measuring rotational speed directly or tangential speed via a circumferential ring. Its built-in accessory storage keeps the tips secure and ready for use.

A bright, high-contrast LCD ensures measurements are easy to read, while the integrated memory allows users to store up to 10 readings for later reference. The hold function is particularly useful for situations where the display cannot be monitored continuously. The tachometer automatically powers down after inactivity, extending battery life for field work.

  • Wide Measurement Range – Accurately measures from 0.5 r/min in low range up to 10,000 r/min in high range.

  • Dual Contact Measurement Options – Includes both a contact tip and a circumferential ring for rotational or tangential speed measurement.

  • Large, Easy-to-Read Display – Features a 5-digit LCD with large 10.5 mm characters for improved visibility.

  • Built-In Memory – Stores up to 10 readings for review and comparison.

  • Hold Function – Retains the last measured value on screen for approximately 30 seconds after power-off.

  • Low Battery Indicator – Alerts when battery power is low to avoid interruptions during use.

  • Compact and Lightweight – Easy to carry and operate in the field or on the production floor

Specification Details
Measurement Method Contact type (tip or ring)
Measurement Range Low: 0.5–2,000 r/min; High: 5–10,000 r/min
Display 5-digit LCD, 10.5 mm character height
Accuracy Low range: ±0.1 r/min (up to 1,249.9 r/min), ±0.2 r/min (1,250–2,000 r/min)
High range: ±1 r/min (5–10,000 r/min)  
Memory Stores up to 10 readings
Hold Function Displays last value for approx. 30 seconds after power-off
Battery Indicator “LOW” warning at 3.3 V
Auto Power-Off After approx. 30 seconds of inactivity
Power Supply 3 × AAA batteries
Battery Life Approx. 20 hours at 20 °C
Operating Temperature 0–40 °C
Storage Temperature –20 to +55 °C
Humidity 35–85% RH (non-condensing)
Dimensions 63 × 172 × 38.5 mm
Weight (with batteries) Approx. 200 g
Included Accessories 2 × contact tips (stored in unit), 1 × circumferential ring (stored in unit), user manual