Specifications
Measurement range
0-999 ppm
Resolution
1 ppm
Accuracy
0 ~ 100 ppm: ± 20%
100 ~ 500 ppm: ± 15%
Accuracy stated for ambient
conditions: 20
o
C ±5
o
C (68
o
F ±9
o
F)
and 50% RH ±20%RH
Sensor Type
Electrochemical
Power supply
(3) 1.5V ‘AAA’ batteries
Battery life
Approx. 250 hours (backlight
off); 35 hours (backlight on)
Dimensions / Weight:
175 x 47 x 28mm (6.9 x 1.8 x
1.1”) / 158.8g (5.6 oz.)
Troubleshooting
Error
Problem
Solution
Ensure batteries are
Display
No display when pressing
properly installed with
power button
correct polarity
Replace batteries
Check for low battery
Display
Display switches off
indicator; replace
batteries
Check for low battery
Display
Calibration Failure
indicator; replace
batteries
E2
Measurement is below
Check readings in a
the range of the meter
different area
E3
Measurement is above
Check readings in a
the range of the meter
different area
