SEFRAM 9825 Carbon Dioxide Meter (NDIR) with alarm

Description

Carbon Dioxide Meter (NDIR), SEFRAM 9825.

CO2, humidity and temperature sensors
Dual wavelength NDIR CO2 sensor (Non-Dispersive Infrared) for superior stability
User operated CO2 calibration
Data Hold & Max/Min/STEL/TWA function
Adjustable auto power off timer
Internal CO2 alarm buzzer
Datalogging up to 32,000 sets
USB interface, PC software included
Backlight display functions
2 year warranty

Measurement Range
CO2	0 to 30000 ppm (5000~30000 ppm over range)
Temperature	-20 to 60°C
Humidity	0 to 100%RH
Accuracy
CO2	1 ppm
Temperature	0.1°C
Humidity	0.1% RH
Precision
CO2	±( 75 ppm + 3% of reading) (0-5000 ppm)
Temperature	±0.8°C
Humidity	± 3%RH
General Specifications
Response Time	20 seconds
Power Source	9V alkaline battery or Micro USB
Operating Temperature	0°C to 50°C (< 90%RH)
Storage Temperature	-20°C to 60°C (< 75%RH)
Battery Life	Approximately 10 hours normal use (alkaline battery)
Dimensions	284.5 x 65 x 38.5 mm
Weight	304 g