HT-4200 Digital Handheld Tachometer
Non Contact
Measures the Speed of Rotating Objects in Revolutions Per Minute (RPM) - Fast, Accurate RPM Measurement
The HT-4200 Digital Handheld Tachometer is a compact, robust non-contact tachometer designed to measure the rotational speed (RPM) of moving objects with high accuracy. Engineered for quick and simple operation, this handheld device uses a reflective marker and infrared beam to provide instant RPM readings without physical contact—perfect for safely measuring hard-to-reach or fast-moving parts.
Key Features of the HT-4200 Tachometer
- Non-Contact Measurement: Accurately measure RPM without touching the object
- Wide Application Range: Ideal for automotive, industrial, R&D, and production environments
- Fast Readout: Digital RPM values displayed every second
- Simple Operation: Just point the device at a reflective marker and press the button
- Compact & Portable: Lightweight and easy to use in the field or workshop
- High Accuracy: Trusted for professional use in testing, diagnostics, and maintenance
Applications – Where You Can Use the HT-4200
The HT-4200 is suitable for a wide range of RPM measurement tasks, including:
- Measuring car engines, shafts, or rotating discs
- Testing DC motors and compact mechanical systems
- Monitoring motors inside sealed products (e.g. drills, vacuum cleaners)
- Measuring fan speed, compressors, or HVAC equipment
- Speed checks on conveyor belts and production line machinery
- Diagnosing construction machinery
- Use in quality control, product testing, and R&D labs
How It Works
To use the HT-4200, simply attach the reflective marker to the rotating object. Aim the tachometer’s lens at the marker, press and hold the power switch, and the RPM will be clearly displayed in digital format at one-second intervals. It's that easy—no contact, no setup delays, just instant, accurate results.
Why Choose the HT-4200?
If you need a
non-invasive, highly accurate RPM measuring tool that’s both portable and easy to use, the HT-4200 is an ideal choice. Whether you're maintaining machinery, testing motor speed, or monitoring equipment performance, this tachometer delivers consistent, professional-grade results.
| FEATURES OF HT-4200 TACHOMETER |
|---|
| Wide Measurement range from 30 to 50,000 r/min |
| Accuracy up to ±1 r/min |
| Reflective surfaces can be measured easily via the reflective marks that are supplied. |
| Detection distance 20 to 300 mm |
| Memory recall of 10 locations/measurements |
Supplied By Techris Systems
At Techris Systems, we supply a wide range of tachometers to suit every application—from contact and non-contact handheld tachometers to engine RPM meters, panel-mounted tachometers, and FFT-compatible models.
Explore our full range of tachometers here
New to tachometers? Click here to learn more about what they do and how they’re used
Key Features of the HT4200 Ono Sokki Tachometer
1. Wide Measurement Range
The HT4200 tachometer boasts a broad measurement range that supports a variety of applications. It can measure rotational speeds from a low range of 4 r/min (when multiple reflective marks are used) to 50,000 r/min (when single reflective mark is used), offering versatility for different types of machinery, from small motors to high-speed turbines. This wide range ensures that users can rely on the HT4200 for all your speed measurement needs.
2. Laser and Contact Measurement
The 5-digit display enables wide-ranging measurement and the non contact laser measurement mode allows for remote detection of rotational speed without any physical contact with the rotating surface. This is ideal for hard-to-reach areas, hazardous machinery, or components that are too delicate for direct contact.
3. High Accuracy and Resolution
The HT4200 tachometer delivers exceptional accuracy, this level of precision is crucial when precise speed measurements are needed to ensure machinery is operating within specifications. Furthermore, the device’s high resolution allows it to measure fine changes in speed, providing greater insight into system performance and helping to detect early signs of wear or malfunction.
4. Large, Easy-to-Read LCD Display
Featuring a bright and clear LCD display, the HT4200 allows users to read measurements with ease, even in low-light environments. The screen is designed to present rotational speeds in both large numerals and smaller data readouts for added convenience. The display can also show additional information like measurement mode, battery status, and units of measurement (RPM, RPS, etc.), providing a comprehensive view of the measurement conditions.
5. Data Hold and Max/Min Memory Function
The tachometer includes a data hold function that allows users to freeze the current reading for easy reference. This is especially useful in fast-moving or hard-to-observe machinery where reading at a specific moment is required. Additionally, the HT4200 features a max/min memory function that records the highest and lowest readings during a measurement session, which can be invaluable for tracking performance trends over time.
6. Built in Memory Function
The HT4200 is equipped with a built in memory function that allow users to store measurements. This function is beneficial in monitoring and analysing machine performance during operation.
7. Compact and Ergonomic Design
The HT4200 Tachometer is designed with portability in mind. Its compact, lightweight construction allows for easy handheld operation, ensuring comfort during extended use.
8. Long Battery Life
Using standard AAA batteries provides a continuous measurement time of approximately 20 hours continuous operation, making it an ideal tool for both fieldwork and laboratory environments.
9. User-Friendly Interface
The HT4200 is designed to be intuitive and easy to operate. Its simple button layout, combined with the clear on-screen instructions, ensures that even first-time users can quickly get accustomed to the device. In addition, the instruction manual provides comprehensive guidance on setup, usage, and troubleshooting, making it a user-friendly choice for a broad range of professionals.
10. High Quality, Trusted Brand
The HT4200 is a high-precision, compact and reliable non contact tachometer developed by Ono Sokki, a well-established brand known for their advanced measurement and testing equipment.
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