Non-contact safety
Measure RPM safely from up to 500mm away without touching moving parts, keeping you out of harm's way.
- Free shipping
- 14-day easy returns
- Secure checkout
- Quality guaranteed
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Why customers love it
Measure RPM safely from a distance
This handheld digital tachometer measures rotational speed quickly and accurately without contact, using a laser beam to safely gauge RPM on motors, fans, and other machinery.
- Non-contact laser measurement for safe, convenient readings
- Wide range: 2.5 to 99,999 RPM with automatic range switching
- High accuracy of ±(0.05% + 1 digit)
- Fast sampling time of 0.8 seconds (above 60 RPM)
- Memory function for storing previous readings
- Large LCD display for easy viewing
Why you'll love this tachometer
Versatile range
Covers a wide range from 2.5 to 99,999 RPM with automatic range switching, so it adapts to motors, fans, and more.
Fast and accurate
Get accurate readings with ±(0.05% + 1 digit) precision and a fast 0.8-second sampling time above 60 RPM.
Memory function
Store previous readings with the built-in memory function for easy comparison and tracking.
Specs
The details that matter
Built to last outdoors, season after season.
- Model
- Dt2234C
- Measurement range
- 2.5 to 99,999 RPM
- Accuracy
- ±(0.05% + 1 digit)
- Sampling time
- 0.8 seconds (above 60 RPM)
- Measuring distance
- 50mm to 500mm
- Power
- Standard 9V battery (not included)
- Display
- Large LCD display
Our worry-free shopping promise
If your order arrives damaged, defective, or not as described, contact us within 14 days and we will make it right with a replacement or refund.
Frequently asked questions
Everything you might want to know before you order.
What is the measuring distance for this tachometer?
The measuring distance is 50mm to 500mm, so you can safely gauge RPM from a distance without contact.
What type of battery does it use?
It is powered by a standard 9V battery, which is not included with the device.
What RPM range can it measure?
The measurement range is 2.5 to 99,999 RPM, with automatic range switching for convenience.
How quickly does it take a reading?
The sampling time is 0.8 seconds above 60 RPM, providing fast and responsive readings.
What kind of display does it have?
It features a large LCD display for easy viewing of your measurements.
Shipping & returns
Shipping
- Delivers to United States (based on your selected country/region).
- Estimated delivery: 3–15 business days after dispatch.
- Shipping cost: Free.
Returns
You can request a return within 14 days after delivery. Standard returns have a €4.00 EUR (approximately $4.66 USD) flat-rate return shipping fee, deducted from your refund. Return shipping is free for items that arrived damaged, defective, or incorrect. Items should be unused and in original packaging where possible. Contact us before sending anything back.
F
Easy to handle and the measurements show quite good accuracy. It came with a case and very quickly.
I recommend it.
D
Not happy, i ordered the yellow one type a more expensive one and got the cheaper brown one type b !
C
It arrived in excellent condition apparently, but when I turned it on it didn't work, disappointing. I replaced the 9V battery (not included) but it still didn't work.
I requested a refund, but they sent me a shipping label that was not accepted at the post office because it had not been paid for.
I have notified Ali Express, but so far there has been no response. I think I will end up without a refund and with a defective product.
T
A
Product received
G
Product came defected, doesn't calculate rpm. Only shows 0 on display.
R
It seems good; the test I conducted gave me correct values.
K
A bit of a long delay... but received on time!!! !
tested very accurately.
(no instructions in French......but very easy to use
just cut off a piece of the adhesive tab (provided)
to position them on a rotating part and aim with the laser beam).
N
I received it as expected.
They informed me when the tool arrived.
A
Great little budget tachometer. Nothing much else to say. Does what it says on the tin. 10/10.
C
Placed the tape on the flywheel and used the light over it while it rotated. Did not record any numbers. Does not work!
C
Product as advertised. I liked the material.
V
It eats battery
D
Very handy tool for people who own lots of rc cars and lots of motors with varying kv/turns. Makes it super easy to figure out which motor to use without excessive messing around. Cheap enough that any serious rc'er should own one.
A
Looks okay!
H
Everything is correct, just need to test it.
A
Ok
A
Shipped in time
Works well
I recommend
M
From
G
Very good! I recommend it!
J
works perfectly
G
Top.
B
Excellent
C
random operation
difficult to have an accurate value
but good for the price it remains a gadget
H
Works well. Very clear display. A way to lock it on would be nice
K
Fast delivery.
Exactly as advertised.
C
Everything perfect, just need to test it.
T
Product is good. But delivery is very bad.
W
Never tried it yet but i think it will work fine for testing small engine rpm
L
It is necessary to check its reliability and functioning.
S
Works very well, easy reading
K
The item appears to function correctly, not a quality item, bit i didn't expect it to be, cheap and functional so great value for money.
Shipping was exceptionally fast, despite the delivery company having problems and the article being delayed by a day