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Page 3SKU 92340 For technical questions, please call 1-800-444-3353
10. Stay alert. Watch what you are doing, use common sense. Do not operate any tool when
you are tired.
11. Check for damaged parts. Before using any tool, any part that appears damaged should
be carefully checked to determine that it will operate properly and perform its intended
function. Check for alignment and binding of moving parts; any broken parts or mounting
fixtures; and any other condition that may affect proper operation. Any part that is damaged
should be properly repaired or replaced by a qualified technician. Do not use the tool if
any switch does not turn On and Off properly.
12. Guard against electric shock. Prevent body contact with grounded surfaces such as
pipes, radiators, ranges, and refrigerator enclosures.
13. Do not operate tool if under the influence of alcohol or drugs. Read warning labels
if taking prescription medicine to determine if your judgment or reflexes are impaired
while taking drugs. If there is any doubt, do not operate the tool.
14. Maintenance. For your safety, service and maintenance should be performed regularly
by a qualified technician. The batteries must be changed regularly.
This is not a personal safety device. This Carbon Monoxide Meter is not
designed to take the place of a home Carbon Monoxide detector.
Warning: The warnings, cautions, and instructions discussed in this instruction manual
cannot cover all possible conditions and situations that may occur. It must be under-
stood by the operator that common sense and caution are factors which cannot be
built into this product, but must be supplied by the operator.
Operation
Refer to the Assembly Drawings on page 6.
Battery Replacement
Note: If the battery becomes weak, the LCD will display the following:
1. Remove the Protective Cover.
2. Use a screwdriver (not included) to remove the screw on the lower portion of the battery
compartment.
3. Take out the old battery and replace it with a new 9 Volt battery. Make sure the battery
polarity marks (+ and -) match up with those in the battery compartment.
4. Replace the back cover and secure it with the screw. Replace the protective case.
Unpacking
When unpacking, check to make sure the parts shown on page 6 are included. If any
parts are missing or broken, please call Harbor Freight Tools at the number on the cover of this
manual as soon as possible.