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.

Neiko 20713a Digital Tachometer Non Contact Laser Photo 2 5

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Description

🎯 Measure with laser precision, lead with confidence.

INSTANT INSIGHT - Large 5-digit LCD screen displays real-time, last, min, and max RPM values for quick diagnostics on the go.
COMPACT POWERHOUSE - Lightweight and portable design fits perfectly in your toolkit, delivering hours of reliable performance.
PINPOINT PRECISION - Experience ultra-accurate RPM readings with ±0.05% error margin—because every decimal counts.
LASER FOCUSED SPEED - Non-contact laser measurement from 2 to 20 inches lets you capture RPMs up to 99,999 without slowing down your workflow.
READY OUT OF THE BOX - Includes reflective tape and 3 AA batteries so you’re set for immediate, hassle-free RPM tracking.

The Neiko 20713A Digital Tachometer offers professional-grade, non-contact RPM measurement from 2.5 to 99,999 RPM with ±0.05% accuracy. Featuring a large LCD display, auto-zero adjustment, and included reflective tape, it’s powered by 3 AA batteries for portable, instant diagnostics on motors and machinery.

Specifications

ASIN	B000I5LDVC
Best Sellers Rank	#37,435 in Automotive ( See Top 100 in Automotive ) #17 in Automotive Tachometers
Brand	Neiko
Brand Name	Neiko
Customer Reviews	4.3 out of 5 stars 2,571 Reviews
Global Trade Identification Number	00837013207139
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
Item weight	181 g
Manufacturer	Neiko
Material	Crystal
Material Type	Crystal
Model	20713A
Number of Items	1
Part Number	20713A
UPC	837013207139
Unit Count	1 Count
Unit count	1 Count

Reviews

S**D

Original & Good Quality

all good

8.04.2024

R**.

Very cheap materials

Very cheap materials. Bad quality

1.12.2020

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

J**.

muy buen producto

cumple con todo lo que dice y muy util para la industria

29.10.2021

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