USER MANUAL
Model 461920
Laser Photo Tachometer and Counter
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
Introduction
Congratulations on your purchase of Extech's Mini Laser Photo Tachometer, Model 461920. This
Tachometer provides non-contact RPM and count measurements. The laser pointer beam
provides accurate long distance measurements for photo tachometer measurements. This meter
is shipped fully tested and calibrated and, with proper use, will provide years of reliable service.
Meter Description
1. Photo Tachometer sensor and laser source
2. MEASURE button
3. MEMORY button
4. MODE button
5. AC Powe
6. Battery compartment (rear)
CAUTION: Rotating objects can be dangerous. Use extreme care.
WARNING: Do not directly view or direct the laser pointer at an eye. Low power visible lasers do not
normally present a hazard, but may present some potential for hazard if viewed directly for extended periods of
time.
Laser complies with: FDA 21 CFR 1040.10 and 1040.11, IEC 60825-1 (2001-2008) Edition 1.2
EN 60825-1:1994/A11:1996/A2:2001/A1:2002
r Adaptor
2
461920-en-GB_V2.6 10/16
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