where do you get replacement tape

Instead of paying a $1 per strip, I use HVAC foil tape I had laying around the house. Only $10 for a 150-feet roll ($8 at HD/Lowes). Something like this https://www.amazon.com/Homemory-Aluminum-Inches-Yards-Furnace/dp/B01M7S4APP/ref=sr_1_7?s=industrial&ie=UTF8&qid=1506079959&sr=1-7&keywords=hvac+foil+tape

Can a reading be taken on the end of a 5/8" dia shaft, or do you have to put the reflective tape on the side of the shaft and aim laser from the side?

You can make a "flag" out of reflective tape and wrap it around the shaft, then all you need to do is aim the tach at the flag (not the center of the shaft). If you're still having trouble, try holding a 3x5 note card with it's edge aligned (parallel) with the center line of the shaft so that only 1/2 of the shaft is visible to the device, then it will only be able to measure the flag one time per rotation and it won't accidentally pick up the flag's reflection twice as it goes around.

how is the battery life when not in use... I had one similar to this one and if i left the battery in it would kill them. anyone else have this prob?

I received mine in December 2018. I use it infrequently. Up till now (about six months) the battery is still good and working well.

I know this unit can read off the RPM, but does it also count a number of revolution?

It does not count the total number of revolutions. You would have to do the math (RPM x minutes). This is a basic unit that shows a minimum and maximum value (RPM) obtained during a reading. It also requires reflective tape to be applied on the shaft (or rotating object). It's not a unit that you can just point and shoot and come up with various readouts.

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Neiko 20713A Digital Tachometer, Non-contact Laser Photo | 99,999 RPM Accuracy

Neiko 20713A Digital Tachometer, Non-contact Laser Photo | 99,999 RPM Accuracy

Product ID: 340405024

Details

Brand
Neiko
Item Weight
0.4 Pounds
Item dimensions L x W x H
15.9 x 10.8 x
Style
Digital
UPC
837013207139

🎯±0.05% ultra-precise accuracy

📏20-inch non-contact laser range

🚀Measures up to 99,999 RPM

$88.71

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Description

🎯 Hit your RPM targets with laser precision—don’t get left spinning behind!

SPEED DEMON READY - Capture ultra-high rotational speeds up to a staggering 99,999 RPM instantly.
PINPOINT PRECISION - Experience razor-sharp RPM readings with industry-leading ±0.05% accuracy.
SAFE NON CONTACT - Measure from up to 20 inches away—no physical contact, no hassle.
USER CENTRIC DESIGN - Large, crystal-clear LCD display and ergonomic handheld form factor for effortless use.
ON THE GO DIAGNOSTICS - Compact, lightweight, and comes with a protective case plus reflective tape for instant setup anywhere.

The Neiko 20713A Digital Tachometer is a professional-grade, non-contact laser RPM meter designed for precision diagnostics. With an ultra-accurate ±0.05% margin of error and the ability to measure rotational speeds up to 99,999 RPM from a safe 2 to 20-inch distance, it’s perfect for automotive, industrial, and mechanical applications. Its large LCD screen, ergonomic design, and included accessories make it a must-have tool for millennial professionals who demand speed, accuracy, and portability in one sleek package.

Specifications

ASIN	B000I5LDVC
Best Sellers Rank	#123,928 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #171 in Motion, Speed & Force
Brand	Neiko
Brand Name	Neiko
Country of Origin	USA
Customer Reviews	4.3 out of 5 stars 2,572 Reviews
Global Trade Identification Number	00837013207139
Included Components	Digital Tachometer
Item Dimensions	15.9 x 10.8 x 4.4 Centimeters
Item Weight	181 g
Item dimensions L x W x H	15.9 x 10.8 x 4.4 Centimeters
Manufacturer	Ridgerock Tools Inc.
Material	Plastic
Material Type	Plastic
Model Number	20713A
Net Quantity	1.0 Count
Number of Items	1
Part Number	20713A
UPC	837013207139
Unit Count	1.0 Count

Reviews

T**E

Digital tachometer

My son says it’s very adjustable, good versatility, has good instructions, has a nice display, is a great size and a great value for money.

27.06.2026

D**K

Good buy

Works great

6.12.2025

C**N

Excelente opción

Muy fácil de usar, bastante preciso y portable

22.12.2023

D**.

Great Tachometer

It works great as expected and for the price it was worth it nice case that it comes in.

6.05.2026

R**.

Very cheap materials

Very cheap materials. Bad quality

1.12.2020

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