Measuring Range

CO 2 : 0~ 6,000 ppm 
Temperature : -20°C ~ 60°C (-4°F  ~ 140°F ) 
Humidity : 10%RH ~ 95%RH

Resolution

CO 2 :1ppm 
0.1°C / 0.1°F  / 0.1%RH

Accuracy

CO 2 : ±3% of reading or ±50ppm, which is greater. 
Temperature : ±0.5°C, ±0.9°F  
Humidity : ±3%RH ( at 25°C, 30 ~ 95% RH ). 
±5%RH ( at 25°C, 10 ~ 30% RH )

Manual Data Memory Capacity

99 sets (Direct reading from LCD display)

Auto Memory Capacity

Approx. 20,000 sets

Operating Conditions

5°C ~ 50°C (41°F  ~ 122°F ) 
10 ~ 90% R.H.

Power Source

6pcs size AAA Alkaline Battery (large current) batteries.

Battery Life

Approx. 8 hours by using alkaline (large current) 
batteries (without backlight or Alarm function). 
For long time datalogging, please use AC adapter.

Size

158(L) ×72(W) ×35(H)mm

Weight

Approx. 255g (including batteries)

Accessories

Instruction Manual, Battery, AC Adaptor (110Vor220V), 
Software CD Rom, RS232 Cable & Carrying case.