Features: CO 2 : 0 ~ 6,000 ppm range, Diffusion sampling mode. Three LCD Display for CO 2 , %RH Humidity and Air Temperature. Maintenance free dual wavelength NDIR infrared CO 2 sensor (non-dispersive infrared). Continuous or manual data logging (20,000 sets). Data hold & Maximum / Minimum with Time stamp. Data Memory and READ function. Alarm and Time setting. RS-232 function / Software. Backlight display function. Simple and safe to use. Specification: Measuring Range: CO 2 : 0~ 6,000 ppm Temperature : -20℃ ~ 60℃ (-4℉ ~ 140℉) Humidity : 10%RH ~ 95%RH Resolution: CO 2 :1ppm 0.1℃ / 0.1℉ / 0.1%RH Accuracy: CO 2 : ±3% of reading or ±50ppm, which is greater. Temperature : ±0.5℃, ±0.9℉ Humidity : ±3%RH ( at 25℃, 30 ~ 95% RH ). ±5%RH ( at 25℃, 10 ~ 30% RH ) Manual Data Memory Capacity:99 sets (Direct reading from LCD display) Auto Memory Capacity:Approx. 20,000 sets Operating Conditions:10 ~ 90% R.H. Power Source:6pcs size AAA Alkaline Battery (large current) batteries. Battery Life: Approx. 8 hours by using alkaline (large current) Approx. 8 hours by using alkaline (large current) 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.
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