• 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 function.
Measurement Range:
CO2: 0 ~ 30000 ppm
Temperature: 0 to 50°C (32 to 122°F)
Humidity: 0 ~ 100%RH
Accuracy:
CO2: ± (75 ppm + 3% of reading) (0 ~ 5000 ppm)
Temperature: ± 1.0°C
Humidity: ± 4.5%RH
Resolution: 1 ppm, 0.1°C/0.1°F, 0.1%RH
Response Time: 20 seconds
Battery Type: 9V alkaline battery
Power Source: 9V battery or Micro USB
Battery life: Approximately 10 hours normal use (alkaline battery)
Operating Condition: 0°C to 50°C(< 90%RH)
Storage Condition: -20°C to 60°C(< 75%RH)
Dimensions: 226.5 x 65 x 38.5 mm
Weight: 273 g
Accessories: 9V Battery、Instruction Manual、micro USB cable、Windows software、Carrying case.