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NEIKO 20713A Digital Tachometer, Noncontact Laser Photo Sensor with 2.5 to 99,999 RPM Accuracy, RPM Gauge Marker with Batteries Included

4.4 4.4 out of 5 stars 3,629 ratings
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Tachometer
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Purchase options and add-ons

Brand NEIKO
Material Crystal
Item dimensions L x W x H 6.25 x 4.25 x 1.75 inches
Item Weight 6.4 ounces
UPC 837013207139

About this item

  • TACHOMETER VS. SPEEDOMETER: While a digital speedometer will read the current speed of a vehicle, this automotive tachometer is used for measuring the rpm of a revolving shaft, as with the driveshaft of an automobile.
  • ACCURATE RPM METER: This handheld tachometer is highly accurate and noncontact. With high-speed laser-aim operation and instant readings from 2.5 to 99,999 rpm, this radar gun gives you accurate rotational speed readings from a distance.
  • AUTOMOTIVE TACHOMETER GAUGE: This big- or small-engine tachometer measures velocity in revolutions per minute. The information is displayed on a large and easy-to-read LCD screen.
  • TECHNICAL SPECIFICATIONS: This pocket radar device is accurate to +/- 0.05% and is capable of measuring at a distance from 2" to 20". It measures revolutions over a 1-second sampling time and stores them as the last, minimum, or maximum reading.
  • COMPACT DIGITAL COUNTER: The compact, lightweight design of this photo tachometer makes it easy to get speed readings for diagnostic and measurement purposes. This device operates on 9v battery (included).
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Frequently bought together

NEIKO 20713A Digital Tachometer, Noncontact Laser Photo Sensor with 2.5 to 99,999 RPM Accuracy, RPM Gauge Marker with Batteri
This item: NEIKO 20713A Digital Tachometer, Noncontact Laser Photo Sensor with 2.5 to 99,999 RPM Accuracy, RPM Gauge Marker with Batteries Included
$25.70
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20 Pieces Reflective Tape Tachometer Tapes Strips for Optical and Laser Reflective Sticker for Non-Contact Digital Photo Tach
$7.99 ($0.40/Count)
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EHDIS Digital LCD Photo Tachometer Non-Contact RPM Meter Motor Speed Gauge Gun Style includes 10 Reflective Tapes
$28.99
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Sold by Ehdis and ships from Amazon Fulfillment.
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Customer reviews

4.4 out of 5 stars
3,629 global ratings

Customers say

Customers like the functionality, ease of use, and value for money of the electromechanical gauge. They mention it works well, is easy to set up, and provides great value for the money. Some are satisfied with battery testing. However, some dislike the battery life and readability. Opinions are mixed on accuracy and build quality.

AI-generated from the text of customer reviews

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FunctionalityEase of useValue for moneyBattery testingAccuracyBuild qualityBattery lifeReadability
305 customers mention "Functionality"229 positive76 negative

Customers like the functionality of the product. They mention it works well, is simple to use, and is an amazing piece of technology for the price.

"It works well and is easy to use. If the disc is speckled though it can give an erroneous high reading...." Read more

"Works well with no issues... Seems to be a good quality product. I do recommend this unit!" Read more

"...but it really only took five minutes to fix and then it worked perfectly...." Read more

"I bought this tester to check my truck battery. It was dead. Going tomorrow to buy a new one." Read more

118 customers mention "Ease of use"96 positive22 negative

Customers find the electromechanical gauge easy to use. They mention it's intuitive and easy to set up. The onboard laser makes readings easy.

"...Easy to use. The accuracy seems to be near perfect...." Read more

"It works well and is easy to use. If the disc is speckled though it can give an erroneous high reading...." Read more

"...Easy to use." Read more

"...The onboard laser makes that easy. It's a bit picky about the angle, too. That may be more a function of the lighter surface of the spindle...." Read more

118 customers mention "Value for money"99 positive19 negative

Customers appreciate the value of the gauge. They mention it's cheap and works well.

"...This is a great load tester for a great price, just don’t test multiple batteries back to back to back, it will ruin it...." Read more

"...I used electrical tape for that. It is worth the price." Read more

"...long as the tester gets very hot and will drain your battery A very fair price" Read more

"This is a killer value for the money, BUT it has a pretty glaring design flaw IMHO...." Read more

18 customers mention "Battery testing"18 positive0 negative

Customers like the battery testing of the product. They say it's a great classic battery tester, simple to use and read, and a helpful tool to diagnose battery and charging issues. Some mention it's used for testing golf cart batteries and that it tests under load.

"...This is a great load tester for a great price, just don’t test multiple batteries back to back to back, it will ruin it...." Read more

"I love fact that this unit tests under load...." Read more

"Simple Battery testing tool to use and read. Priced reasonably, Help me determine, my charger was not charging and in need of repair. Not my battery...." Read more

"This meter is easy to use.very helpful tool to diagnose battery and charging issues.." Read more

119 customers mention "Accuracy"79 positive40 negative

Customers have mixed opinions about the accuracy of the gauge. Some mention it's reasonable, while others say the readings are wildly off and keep changing a lot.

"...Easy to use. The accuracy seems to be near perfect...." Read more

"...It also gave accurate readings on the much slower farm Tractor PTO shaft at top RPM of 600." Read more

"...If the disc is speckled though it can give an erroneous high reading...." Read more

"...well enough because this thing although it does take RPM readings that are accurate occasionally it really is a mediocre to low end device. 1...." Read more

59 customers mention "Build quality"30 positive29 negative

Customers have mixed opinions about the build quality of the electromechanical gauge. Some mention it's well-made, reliable, and stable. Others say it's cheaply constructed and would not hold up to much abuse.

"Works well with no issues... Seems to be a good quality product. I do recommend this unit!" Read more

"...It did this perfectly although the general feeling is a bit "plastic," but that didn't seem to effect performance any and I've used it quite a bit..." Read more

"...Don't think I'll trust the actual gauge, otherwise it's a pretty decent resistive element for high amperage...." Read more

"...I’m NOT happy with the condition of your product received!" Read more

59 customers mention "Battery life"8 positive51 negative

Customers are dissatisfied with the battery life of the electromechanical gauge. They mention it doesn't work, the batteries come dead, and the device is not supplied with alkaline batteries.

"...It did kill the battery pretty quickly, but that might just have been the battery it came with...." Read more

"...It drains battery when turned off so if you are not going to use it for a while remove the battery." Read more

"Others gave 1 star for a dead battery. Yeah, the battery was dead. Replaced with a new battery and it worked fine. Big deal." Read more

"...The batteries were un-usable! It appears that package had been setting on your shelf for a long time!..." Read more

37 customers mention "Readability"0 positive37 negative

Customers are dissatisfied with the readability of the gauge. They mention it can't provide a reading the first time they tried to use it, the tachometer doesn't read at all, and it's not easy to read accurately. They also say the instructions are sparse and poorly translated.

"...was still in shrink wrap so it was not a return, but it could not provide a reading first time I tried to use it...." Read more

"...As soon as you let go of the button it stops recording the RPM. 2. It's rather slow to refresh. 3...." Read more

"...Be warned that this tachometer will simply not give a reading when the batteries are low; the display and laser will still turn on." Read more

"...It actually caused the tachometer not to read at all, even though the display worked ok...." Read more

Very accurate, measured 93 amps out of 100
5 out of 5 stars
Very accurate, measured 93 amps out of 100
Saw another review claiming this tester only draws about 60/100 amps, and I wanted to test this to see if they were right.I used a DC amperage clamp meter to measure how many amps this tester actually draws. It starts at about 95 and slowly drops to about 90 as the resistance increases when the resister in the tester starts heating up. If I used a fresh battery that was 12.8 volts I’m sure it would read 100 amps, but the battery I used was maybe 12.5 volts.This is a great load tester for a great price, just don’t test multiple batteries back to back to back, it will ruin it. Let it cool down for 10-15 minutes between each test.
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Top reviews from the United States

Kane
5.0 out of 5 stars Worked Great and Saved Me Money
Reviewed in the United States on September 26, 2024
Style: TachometerVerified Purchase
This worked as advertised. I'll give anything 5 stars that saves me money. I used this to ensure a motor was spinning at specs. It did this perfectly although the general feeling is a bit "plastic," but that didn't seem to effect performance any and I've used it quite a bit since I've had it. It did kill the battery pretty quickly, but that might just have been the battery it came with. I've sense swapped the battery and haven't had it die yet.
2 people found this helpful
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Marianne
5.0 out of 5 stars Great Tool, Great Value
Reviewed in the United States on July 17, 2024
Style: TachometerVerified Purchase
Purchased this tachometer to set my personal lawn care equipment to factory specifications. Easy to use. The accuracy seems to be near perfect. I would highly recommend this tool to DIYers, like myself, who enjoy performing the maintenance on their own equipment. I'll let the Pros speak for themselves, but I think they would find it useful as well.
2 people found this helpful
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John D.
4.0 out of 5 stars Works fine, but will drain battery
Reviewed in the United States on October 21, 2024
Style: TachometerVerified Purchase
It works well and is easy to use. If the disc is speckled though it can give an erroneous high reading. It drains battery when turned off so if you are not going to use it for a while remove the battery.
One person found this helpful
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Just Me
5.0 out of 5 stars Seems to work well.. No issues
Reviewed in the United States on October 5, 2024
Style: TachometerVerified Purchase
Works well with no issues... Seems to be a good quality product. I do recommend this unit!
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Quiltin' Granny
5.0 out of 5 stars Works great!
Reviewed in the United States on July 23, 2024
Style: Car Battery TesterVerified Purchase
I bought this tester to check my truck battery. It was dead. Going tomorrow to buy a new one.
One person found this helpful
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Eric
5.0 out of 5 stars Very accurate, measured 93 amps out of 100
Reviewed in the United States on August 4, 2024
Style: Car Battery TesterVerified Purchase
Saw another review claiming this tester only draws about 60/100 amps, and I wanted to test this to see if they were right.

I used a DC amperage clamp meter to measure how many amps this tester actually draws. It starts at about 95 and slowly drops to about 90 as the resistance increases when the resister in the tester starts heating up. If I used a fresh battery that was 12.8 volts I’m sure it would read 100 amps, but the battery I used was maybe 12.5 volts.

This is a great load tester for a great price, just don’t test multiple batteries back to back to back, it will ruin it. Let it cool down for 10-15 minutes between each test.
Customer image
Eric
5.0 out of 5 stars Very accurate, measured 93 amps out of 100
Reviewed in the United States on August 4, 2024
Saw another review claiming this tester only draws about 60/100 amps, and I wanted to test this to see if they were right.

I used a DC amperage clamp meter to measure how many amps this tester actually draws. It starts at about 95 and slowly drops to about 90 as the resistance increases when the resister in the tester starts heating up. If I used a fresh battery that was 12.8 volts I’m sure it would read 100 amps, but the battery I used was maybe 12.5 volts.

This is a great load tester for a great price, just don’t test multiple batteries back to back to back, it will ruin it. Let it cool down for 10-15 minutes between each test.
Images in this review
Customer image
Customer image
8 people found this helpful
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Michael Morris
3.0 out of 5 stars Would be higher rating if I didn't have to fix it first.
Reviewed in the United States on July 2, 2016
Style: TachometerVerified Purchase
Was not in a condition to work right out of the box. The device was still in shrink wrap so it was not a return, but it could not provide a reading first time I tried to use it. I work in optics and could tell right away the problem was with the lens assembly because it was loose and out of position. I was able to fix it quickly and then it worked like a charm. If the initial quality was high I would give it four stars. In case you take the plunge and also get a lemon, here is what to do:

Remove the battery cover. There are two small black screws recessed in holes that need to be removed; use a skinny Phillips head screwdriver to remove them. At the opposite end there are two more screws also recessed. When those are out remove the top cover. The two push buttons may fall off their switches but don't worry, just set them aside. On the top of the circuit board near the lens you will see a clear photodiode; mine was bent at a severe angle. If necessary use your fingers to bend it so it is pointing straight forward toward the lens- make sure the photodiode does not bend down toward the circuit board because the light emitter is mounted on the underside of the board and you don't want to block the light. The lens is biconvex so it doesn't matter which side is which; it sits loosely inside a plastic ring. There is a larger plastic spacer that holds the lens firmly within its plastic ring- they don't snap together tightly but when you have them positioned correctly they will stay together well enough to place them together as a unit in the tachometer. The lens end of the assembly goes toward the photodiode. There is a rim on the spacer that fits in a groove at the very front of the tachometer and the rim has an oval shape so the assembly needs to be rotated so that it nestles down in the groove. Once the assembly is in place you can close the tachometer, but make sure the switch buttons are seated on top of the two switches (the Test and Memory switches) and angled at a 45 degree angle so they'll match up to the holes in the tachometer cover. Then you can press the cover in place over the switches and put the four screws back.
It sounds awfully complicated but it really only took five minutes to fix and then it worked perfectly. I also can verify its accuracy because I was using a synchronous motor controlled by a pulse generator that outputs exactly 2500 rpm and that is what I got from the tachometer. My only quibble is that the device displayed 0 rpm when it actually wasn't getting a signal; I would prefer that it have an indicator of no signal.
154 people found this helpful
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DaveS
5.0 out of 5 stars Does the job
Reviewed in the United States on September 27, 2024
Style: TachometerVerified Purchase
I had a need to check the idle speed on an antique car I'm repairing, and this did the trick. Easy to use.
One person found this helpful
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Top reviews from other countries

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Excelente funcionamiento
5.0 out of 5 stars Exelente
Reviewed in Mexico on August 6, 2024
Style: Car OBD2 ScannerVerified Purchase
Funciona perfecto
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Gary R. Frank
5.0 out of 5 stars Simple and effective
Reviewed in Canada on March 3, 2024
Style: Car Battery TesterVerified Purchase
Great price for the job it does.
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Suhail Manna
3.0 out of 5 stars good to use
Reviewed in Saudi Arabia on October 12, 2023
Style: TachometerVerified Purchase
good device ... working nice with me
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David F.
5.0 out of 5 stars Excelente producto
Reviewed in Mexico on August 29, 2020
Style: TachometerVerified Purchase
Fácil de usad
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Abel
5.0 out of 5 stars Buen producto
Reviewed in Mexico on February 17, 2024
Style: Car Battery TesterVerified Purchase
Excelente si tienes taller o eres hobbista
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