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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

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

Q: 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

Q: 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.

Q: 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.

Q: 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.

Product ID: 2719719

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Details

Brand
NEIKO
Material
Crystal
Item dimensions L x W x H
6.25 x 4.25 x
Item Weight
0.4 Pounds
Screen Size
1.75 Inches

🎯±0.05% ultra-precise accuracy

📏2" to 20" noncontact measurement

🚀2.5 to 99,999 RPM range

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Description

🎯 Master the spin game with NEIKO’s laser-precise tachometer!

SAFE HANDS FREE - Noncontact laser sensor lets you measure from 2 to 20 inches away—keep your hands clean and safe.
PINPOINT PRECISION - Experience razor-sharp RPM readings with ±0.05% accuracy—because every revolution counts.
SPEED DEMONS WELCOME - Measure from a whispering 2.5 RPM to a blazing 99,999 RPM—perfect for any engine or machine.
READY TO ROLL ANYWHERE - Compact, lightweight design with included batteries, reflective tape, and cushioned case—your portable RPM lab.
INSTANT READOUTS ON A BIG SCREEN - Large, easy-to-read LCD delivers real-time RPM data so you never miss a beat.

The NEIKO 20713A Digital Tachometer is a compact, noncontact laser RPM meter offering ultra-precise measurements from 2.5 to 99,999 RPM with ±0.05% accuracy. Featuring a large LCD screen, it measures rotational speed from 2 to 20 inches away, stores min/max readings, and comes complete with batteries, reflective tape, and a protective case—ideal for professionals demanding fast, reliable diagnostics on the go.

Specifications

Brand	NEIKO
Material	Crystal
Item dimensions L x W x H	6.25 x 4.25 x 1.75 inches
Item Weight	0.4 Pounds
Screen Size	1.75 Inches
UPC	837013207139
Global Trade Identification Number	00837013207139
Manufacturer	Ridgerock Tools Inc.
Item Weight	6.4 ounces
Product Dimensions	6.25 x 4.25 x 1.75 inches
Item model number	20713A
Batteries	1 9V batteries required.
Manufacturer Part Number	20713A
Special Features	Lightweight

Have a Question? See What Others Asked

where do you get replacement 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?

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

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