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Page 4SKU 92340 For technical questions, please call 1-800-444-3353
Note: When operating the unit, make sure the Sensor on the back of the unit is free and clear
of any obstructions.
Operating the Carbon Monoxide Meter
1. Press the On/Off button to activate the unit and it will begin measuring as you carry it,
while walking around the test area. The results will be displayed on the LCD in PPM
(Parts Per Million).
2. When finished, press the On/Off button to turn off the unit.
Note: For use in dark environments, the LCD will light up. Press the Back Light button (see
page 6) to turn on the light, and press it again to turn it off.
Special Features:
1. To freeze the Carbon Monoxide Meter at a specific reference for later use, press the
HOLD button. The word HOLD will appear on the LCD along with the saved measure-
ment. To return to normal operation, press the HOLD button again.
2. If you want to keep track of the highest reading you take, press the MAX button. The
LCD readout will not change as the unit takes in new readings. It will only show the
highest reading encountered since you pressed the MAX button. To return it to normal
operation, press the MAX button again.
Operation (continued)
Important Carbon Monoxide Information
Carbon monoxide is DEADLY in a closed environment. Early signs of
Carbon Monoxide poisoning resemble the flu, with headaches, dizziness,
or nausea. If you have any of these signs, GET FRESH AIR IMMEDIATELY,
whether the meter has a high reading or not.
Carbon Monoxide (CO), a colorless, odorless gas, is produced in dangerous levels
from internal combustion engines (in enclosed areas) such as automobiles, lawnmowers, and
any other small engine appliance. Gas, oil, and kerosene appliances that are not properly
maintained will also produce this deadly gas. In the house, plugged chimneys, dirty flues, gas
heaters, fireplaces, and furnaces are also capable of producing quantities of this silent killer. If
high readings are found, immediately open a window and ventilate the room, if possible shut
off the appliance, evacuate the area, and call your gas supplier or a qualified technician for
analysis of the problem and service.
US Department of Labor, Occupational Safety & Health Administration (OSHA) regula-
tion 1917.24: The CO content in any enclosed space shall be maintained at not more than 50
PPM (0.005%). Remove employees from enclosed space if the CO concentration exceeds
100 PPM (0.01%).