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EEEkit 4 Digital Red/Blue LED Tachometer RPM Speed Meter + Hall Proximity Switch Sensor NPN Led Panels Digital Led Module

4.2 out of 5 stars 132 ratings

$18.29
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  • HIGH PERFORMANCE: 4-digits display, clear and easy for readings. Mini size, high performance, and fast reaction speed. The digital LED tachometer size is about 80*25*40mm(L*W*H). Two LED colors for red/blue.
  • HIGH STABILITY: With good stability, and anti-interference ability. Over-range display, the thousand unit display "1" or "-1", the last three do not show. The Voltage is DC8-24V, Current is 30mA.
  • HIGH ACCURACY: using the latest A/D conversion chip, high stability reference IC and stick chip components. The measurement range is 10-9999rpm, and the accuracy is up to 0.1%. Clear zero time is About 10s.
  • SETTABLE PARAMETERS: Setting parameters will be memorized when power is off. Suitable for detecting the speed of every kind of motor. Display refresh rate is more than 3 times/sec.
  • EXTENSIVE APPLICATIONS: The digital LED tachometer can be applied to voltage and current measurement, and also can be an external sensor to measure temperature, pressure, displacement, and other physical quantities.
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Customer ratings by feature

Value for money
3.8 3.8
Accuracy
3.5 3.5
Easy to install
3.4 3.4

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Product Description

EEEKit 4 Digital Red/Blue LED Tachometer RPM Speed Meter + Hall Proximity Switch Sensor NPN Led Panels Digital Led Module

7

Package Includes: 1 x LED Tachometer.1 x NPN hall proximity sensor.1 x Magnet

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Customer Rating 4.2 out of 5 stars (132) 4.3 out of 5 stars (17) 4.4 out of 5 stars (103) 4.5 out of 5 stars (70) 4.6 out of 5 stars (17) 3.8 out of 5 stars (5)
Price $18.29 $18.88 $26.99 $10.00 $10.99 $16.55
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Sold By EEEkit LIYA-MUYE SHAHE Measuring Tools Amazon.com Quuaancmi FOSHAN SHI SHENGYIN WUJIN SULIAO YOU XIAN GONG SI
Number of Items 1 1 1 1 20 1

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Customer reviews

4.2 out of 5 stars
4.2 out of 5
132 global ratings

Top reviews from the United States

Reviewed in the United States 🇺🇸 on March 31, 2022
Reviewed in the United States 🇺🇸 on January 13, 2020
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5.0 out of 5 stars Works as advertised, very good value
By joendoodle on January 12, 2020
Price is one of the best I found.

No instructions are included, however the pictures on Amazon give a wiring diagram.. This is necessary because the "printing" on the case is almost too small to see.

Plenty (actually more than enough) wire length is provided.
Using this is quite valuable for me, the previous (from the factory) minimum speed was around 650 RPM, using this RPM indicator as a reference I was able to modify the speed drive to lower my minimum speed to near the 500 RPM I desired. Also I was able to see how fast this machine would go if the max speed stop is bypassed.

The display can be mounted in a "project box" for a more professional appearance. (The current installation is temporary, and I haven't done this yet).

The photos show my "temporary" installation". Demonstrating the device works as advertised. I assume it is accurate, although I do not have a standard to compare it to. RPM indications (in photos) show the limits of the machine (normal speed controls overridden to achieve top attainable speed).

One slight negative, the display does not give "instant" response. Once speed changes it takes about a second to update. This isn't an issue but I felt obligated to point this fact out in the review.
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3 people found this helpful
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Reviewed in the United States 🇺🇸 on December 7, 2021
Reviewed in the United States 🇺🇸 on December 3, 2021
Reviewed in the United States 🇺🇸 on January 1, 2021
Reviewed in the United States 🇺🇸 on December 30, 2019
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4.0 out of 5 stars Dyslexic wiring diagram
By robert on December 29, 2019
The wiring diagram is dyslexic you need to flip it. I got the the flipped diagram off youtube (HOW TO WIRE DIGITAL TACHOMETER). It works great so far.
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7 people found this helpful
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Reviewed in the United States 🇺🇸 on July 12, 2020
Reviewed in the United States 🇺🇸 on April 12, 2019
25 people found this helpful
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