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CENTER 512 Carbon Dioxide (CO2) Meter 

CENTER 512 Carbon Dioxide (CO2) Meter
 Description 
FEATURES
  • 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 
 
 Specifications
  
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.
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