Features
- Low-cost portable meter checking indoor air quality
- Big LCD with backlight to display 3 parameters: CO2, CO, temperature
- Designed with NDIR (non-dispersive infrared) waveguide technology CO2 sensor
- Manual calibration is available for CO2 or CO
- 99 points manual and up to 32000 points auto logging memory
- Audible alarm (80 dB) threshold setting
- Max, min, average, hold functions included
- Mini USB output to PC for data analysis
Technical Specifications
| Measuring Range | CO2: 0 ppm to 9999 ppm, (5001 ppm to 9999 ppm out of scale range). CO: 0 ppm to 1000 ppm |
| Relative Humidity | 0.1% RH to 99.9% RH |
| Resolution | 1 ppm,32.18 °F, 0.1% RH |
| Accuracy | +30 ppm +5% of reading (0 ppm to 5000 ppm) Other ranges are not specified. CO2: + or -10 ppm for less than 100 ppmCO: + or -10% or reading for 101 ppm to 500 ppm + or -20% of reading for 501ppm and above Temperature: 0.9 °F |
| Relative Humidity | +3% RH (at 77 °F (25 °C), 10% RH to 90% RH) +5% RH (at 77 °F (25 °C), other range) |
| CO2 Warm-Up Time | 30 seconds |
| Response time | CO2:<30 seconds (90% step change) CO: <60 seconds (90% step change) Tair: <2 minutes (90% step change) RH: <10 minutes (90% step change) |
| Power Supply | AA x 4pcs or 9V adaptor |
| Battery life | > 24 hours (NO include battery) |
| Temperature | -5 °F to 140 °F (-20 °C to 60 °C) |
| DP (Dew point temp.) | -4 °F to 140 °F (-20 °C to 60 °C) |
| WB (Wet bulb temp.) | 23 °F to 140 °F (-5 °C to 60 °C) |
| Operating condition (avoid condensation) | CO2 sensor: -4 °F to 122 °F (-20 °C to 50 °C),
CO sensor: 32 °F to 122 °F (0 °C to 50 °C), for the rest parameters: -4 °F to 140 °F (-20 °C to 60 °C) |
| Storage Condition | -4 °F to 140 °F (-20 °C to 60 °C),
10% RH to 90% RH (avoid condensation) |
| LCD or Meter Size (in) | 1.02 in x 1.73 in (26 mm x 44 mm),
8.07 in x 2.76 in x 2.20 in (205 mm x 70 mm x 56 mm) |
| Weight | 0.44 lb (0.2 kg) |
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