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Digital Laser Photo Tachometer DT2234A RPM Non Contact Photoelectric Tachometer

Place of Origin: 
Fujian, China (Mainland)

Basic Info

Model No.: DT2234A

Product Description


Not-contact test

High resolution

Large LCD display

Last / Max. / Min. value auto storage

Low battery indication


Technology features

Dispaly: 5 digits LCD

Digit height: 18mm

Test range: 2.5 to 99999RPM(r/min)

Resolution: 0.1RPM(2.5 to 999.9RPM)

1RPM(over 1000RPM)

Accuracy: ±(0.05% +1digit)

Sampling time: 0.8 sec.(over 60RPM)

Test range select: auto ranging

Memory: max. value, min. value and last value

Detecting distance: 50 to 500mm

Time base: 6MHz crystal oscillator

Circuit: exclusive one-clip of microcomputer LSI circuit

Power consumption: Approx. 40mA(Operation)

Operation temperature: 0 to 50°C(32 to 122°F)

Measuring procedure

1. Apply a reflective mark to the object being measured

2. Install batteries, press “TEST” key, and align the visible light beam with the applied target.

3. When display is stable, release the “TEST” key; then no digits are shown, but the max. / min. / last vale will be stored automatically.

4. Press “MEM” key, max. / min. / last value will display circularly.


Reflective mark

Cut about 12mm square reflective paper, paste it onto one rotation axis. Note: non-reflective part must be larger than reflective area. If rotation axis is reflective as well, cover it with black tape or paint. Make sure rotation axis is clean and smooth, before pasting reflective paper.

Low speed measurement

When measuring low rotational speed, multiple reflection paper can be glued on the rotary shaft. Display value should be divided by the number of reflection paper.

For long time no use, please take out the batteries.


When release “TEST” key, no digits are shown, but max. / min. / last vale are stored automatically.

Press “MEM” key, max. / min. / last value will display circularly. (“UP” means max. value, “dn” means min. value, “LA” means last value)


General description

Power supply: four 1.5V AA battery

Product size :164x74x37mm

Product weight: about 200g(with battery)

Standard accessories: meter (without battery), carrying  bag, battery, manual, Reflecting tape marks


Packing details:

Packing: color box

Packing quantity: 40PCS/CTN

Carton size: 44.5x35x32CM

G.W./N.W.: 12/11KG

Contact us if you need more details on Digital Tachometer Dt-2234c. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Tachometer Universal Digital、Digital Speedometer Tachometer. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Vibration Meter/Thickness Gauge /Tachometer Series > Tachometer Series

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