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Tachometers

Tachometers

Measure rotational speed

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Tachometers
Home / Products /
Industrial Test Instruments
/
Tachometers

Tachometers

Measure rotational speed

View All Products
Tachometers
Tachometers measure the speed of motors, fans, shafts and other rotating parts. They help verify stable operation during equipment inspection, maintenance, setup and quality checks.

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TA501 Series >

The TA501 Series Digital Tachometer features advanced non-contact laser measurement technology for accurate RPM testing of motors, fans, shafts, and rotating machinery. With temperature & humidity measurement, data recording, limit alarm, and portable design, it is widely used in industrial maintenance, motor manufacturing, power, energy, aerospace, and production inspection applications.

TA501A >

Non-Contact Measurement | Temperature & Humidity Measureme

TA503 Series >

TASI TA503 Series Digital Tachometers provide high-accuracy contact and non-contact RPM measurement solutions with speed, linear velocity, data logging, and USB communication functions. Ideal for motors, fans, machinery, automotive maintenance, and industrial inspection.

TA503A >

Non-Contact Measurement | Temperature Measurement

TA503B >

Contact Measurement | Temperature Measurement

TA503C >

Contact / Non-Contact Measuremen | USB PC Communication

TA500 Series >

TA500 Series Digital Tachometer provides non-contact laser, contact, and dual-mode measurement solutions for accurate RPM, surface speed, and length testing. Ideal for motors, fans, conveyors, machinery, automation systems, and industrial maintenance applications.

TA500A >

Non-Contact Measurement

TA500B >

Contact Measurement

TA500C >

Contact / Non-Contact Measuremen | Multiple Measurement Units

TA506 Series >

TA506 Series handheld laser digital tachometer provides accurate non-contact RPM measurement from 3 to 100,000 RPM. TA506B supports Bluetooth data transmission, ideal for motor, fan, pump, machinery inspection, maintenance, and industrial applications.

TA506A >

Non-Contact Measurement

TA506B >

Non-Contact Measurement | Bluetooth Communication

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Technical Articles

Why Does the Reading Fluctuate When Using a Handheld Tachometer?

Why Does the Reading Fluctuate When Using a Handheld Tachometer?

Fluctuating readings on a handheld tachometer do not necessarily indicate an instrument fault. With non-contact tachometers, hand movement, unstable alignment with the reflective tape, and optical interference can affect the signal. With contact tachometers, contact pressure, angle, and slippage can also influence the result. This article explains the most common causes and practical troubleshooting methods.
tachometer reading fluctuationhandheld tachometerunstable RPM readingnon-contact tachometercontact tachometertachometer measurement
Reading Time: 6min. 0sec.
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Does Measuring Distance Affect Tachometer Accuracy?

Does Measuring Distance Affect Tachometer Accuracy?

Non-contact tachometers determine rotational speed by detecting reflected optical signals from a rotating target. Within the specified operating distance, measuring distance normally does not directly change the instrument’s stated accuracy. However, excessive or unsuitable distance can weaken the reflected signal, enlarge the detection area, increase interference, and lead to unstable, missed, or incorrect readings.
tachometer measuring distancetachometer accuracylaser tachometeroptical tachometernon-contact tachometerRPM measurement
Reading Time: 6min. 0sec.
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Can Bright Light Affect a Non-Contact Tachometer?

Can Bright Light Affect a Non-Contact Tachometer?

Non-contact tachometers typically determine rotational speed by detecting periodic reflected-light signals from reflective tape. Direct sunlight, high-intensity LED lighting, strobe lights, and welding arcs can increase background light and reduce signal contrast, resulting in fluctuating readings or detection failure. Proper alignment, shorter measuring distances, shielding from strong light, and correct use of reflective tape can significantly improve measurement stability.
non-contact tachometerlaser tachometerphoto tachometerbright light interferenceRPM measurementreflective tape
Reading Time: 5min. 0sec.
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