
















🚀 Elevate Your RPM Game with Precision!
The EHDIS Digital LCD Photo Tachometer is a non-contact RPM meter designed for professionals who demand accuracy and ease of use. With a measuring range of 2.5 to 99999 RPM and an impressive accuracy of +/- 0.02%, this tachometer is perfect for measuring the speed of motors and machinery. It features a large LCD display for easy reading, includes 10 reflective tapes for immediate use, and allows measurements from a distance of 2 to 20 inches.






| ASIN | B0765XP9LS |
| Batteries | 1 9V batteries required. |
| Best Sellers Rank | #20,814 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Industrial Tachometers |
| Date First Available | October 5, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4.6 ounces |
| Item model number | LH900RF |
| Manufacturer | EHDIS |
| Product Dimensions | 5.91 x 5.12 x 0.79 inches |
R**T
Quality and Delivery
Price and Delivery was perfect. Works good.
S**S
Good accuracy, but difficult to hold a steady reading
Good price, I like that a good amount of reflective tape was included. Accuracy verified with 2 methods; a calibrated signal generator (HP 3325B) and a tachometer calibrator (Sargent 1100A). The first method uses an LED from the output of the signal generator, set at specific frequencies, ex. 4.1667Hz should show 250rpm on the tach. I found this method to be slightly difficult, as the tach wouldn't always detect the LED (I used white and red LEDs). The second method uses a Sargent tachometer calibrator and a 20:1 ratio gear box (with a wheel that uses the reflective tape). That method worked better, as I was able to focus the tach's laser on the tape. I set the calibrator to 6000rpm and 20,000rpm. Both were dead on. So, the tach works well, you can trust the readout IF you can get it to display a constant, identical reading. I'd hold it on the target for 20-30 seconds and average the readings. 4 stars for the accuracy and price.
L**A
Tacometro
EXCELENTE
J**E
DOES NOT WORK OUT OF THE BOX!
I bought this knowing I would eventually need it and went to use it months later and it doesn't even work, if i tap on it, it will read thin air with fictitious numbers. Piece of JUNK. And of course, I don't see a thing about warranty.
G**Y
good tool for the workshop
easy to use.
D**K
Works good
No problems out of it. Have to be about 3' from object. No battery included.
B**O
Working good
The product work very good and the reading is very precise, it have a laser bean that shows exactly where I'm pointing very different of the concurrency, small with a good price and a visible lighted panel this is an outstanding option for a contactless RPM measuring.
B**N
Very handy!
Very easy to use!
M**E
Very good value.
C**N
Fonctionne bien
J**T
This product did not work properly. The digital display was very erratic and measure into the 10s of thousands when it should have read into the hundreds.
C**O
It is hard to get an accurate reading, some time it shows a much too fast of RPM. I have to get just the perfect angle on the reflective tape to get a good reading.
J**N
Seems to work good
Trustpilot
1 month ago
1 month ago