1
Max
2
➊
display current Co value.
➋
display maximum Co value.
➌
low battery indicator.
➊
Turn the meter on and off. Select the alarm value.
➋
Turn on and off the backlight. Reset the maximum
Co value. Select the calibration value.
➌
enter calibration mode by pressing both pushbuttons
ppm
CO Meter
lCd display
2
3
1
function Keys
3
3