Low cost portable meter checking indoor air quality
Big LCD with CO2 &temperature display simultaneously
Designed with NDIR (non-dispersive infrared) waveguide
technology CO2 sensor
Manual calibration is recommended
Warning carbon dioxide level programmable
Backlight function for working in dark place
Long time drift compensation
Audible alarm (~80db) threshold setting
Max ,min, average functions included
PC output every 2 seconds for on line analysis
Hold function freezes current readings
Display 8 hrs TWA value (time-weighted average) or
15 minutes STEL value (short-term exposure limit)
Housing design surrounds with rails to help air ventilation
for quick and accurate response
Easy to calibrate at fresh air around 380-420ppm
Measuring range
o o
-10~60 C (14~140 F)
CO2
Temperature
Resolution
o o
1ppm , 0.1 C/ F
Accuracy
CO2
Temperature
o o
+0.6 C/+0.9 F
Warm-up time 30 seconds
Response time
CO2
Tair
LCD size (mm, HxW)
RELAY(1A 30VDC/0.5A 125VAC)
Operating condition
Storage condition
Power supply
Meter size (LxWxH,mm)
Weight
Standard package
<30 seconds(90% step change)
<2 mins (90% step change)
26x44
NO
o
0~50 C , 0~95% RH (avoid condensation)
o
-20~ 50 C,0~95%RH(avoid condensation)
AA x 4pcs
205x70x56
200g
Meter, manual ,AA batteries,hard carry case
7752 77532
0~9999 ppm,
(2001~9999 ppm out of scale range)
0~9999 ppm,
(5001~9999 ppm out of scale range)
+30ppm+5% of
reading( 0~5000ppm)
Other ranges are
not specified
+50ppm+5% of
reading( 0~2000ppm)
Other ranges are
not specified
NO
Battery life > 24 hours (Alkaline battery)