Product manual

Page 2 For technical questions, please call 1‑800‑444‑3353. SKU 66632
Specications
Display LCD 5 Digits
RPM Range 6 ‑ 99999 RPM
Accuracy ± 0.05% +1 RPM
Power
Source
(4) ‘AA’ Batteries or
6VDC (neither included)
Operating
Environment
32° ‑ 104° F,
< 85% Humidity
Includes Reective Tape
Important Safety Information
1. When in use, this tool is
near rotating parts.
Do not touch rotating parts.
Do not wear loose clothing when
working with rotating parts.
Contain hair, jewelry and any item that
may become entangled in rotating part.
2. This product is not a toy. Do not allow
children to play with or near this item.
3. Position batteries in proper polarity and
do not install batteries of different types,
charge levels, or capacities together.
4. Use as intended only.
5. Inspect before every use; do not use
if parts are loose or damaged.
6. Wear ANSI‑approved safety
goggles when working.
7. Maintain product labels and
nameplates. These carry important
safety information. If unreadable
or missing, contact Harbor Freight
Tools for a replacement.
Set Up
Before rst use, remove clear
protective covering from Display.
Battery Installation
Note: Install batteries before
use and replace the batteries
when the Low Battery Indicator
(see Figure C) appears.
1. Remove Screw and Battery
Cover on back of Tachometer.
Figure A: Battery Compartment
2. Install 4 ‘AA’ batteries in battery
compartment, matching polarity
markings inside battery case.
3. Replace Battery Cover and
Screw. Do not overtighten.
Note: This tool may be used with a
6VDC power adapter instead.