Air quality sensor for monitorung of indoor air quality
Non-dispersive infrared (NDIR) gas sensor with CO2 measuring range up to 5000 ppm
Ventilation recommendation on basis of CO2 concentration in the air
Indoor temperature display in °C or °F
Indoor humidity display
MIN/MAX value memory of last 24 hours with auto-scrolling feature
Adjustable CO2 value alert with obtional alarm sound
Adjustable alert for high or low temperature and humidity
Calibration feature for CO2, temperature and humidity
Low battery indicator
Built-in ROM memory to save settings
Backlight with adjustable brightness levels
CO2 levels and guidelines
Below are some CO2 reference levels in general:
Background (normal) outdoor air level.
Typical level for occupied spaces with good air exchange.
Start ventilation of the room.
Level associated with complaints of drowsiness and poor air.
Level associated with headaches, sleepiness, and stagnant, stale, stuffy air. Poor concentration, loss of attention, increased heart rate and slight nausea may also be present.
Exposure may lead to serious oxygen deprivation resulting in permanent brain damage, coma, and death.
Dimensions: 94 x 145 x 50 mm
Power supply: Power supply (included)
Temperature range: 0°C - 50°C / 32°F to 122°F
Temperature resolution: 0.1°C
Humidity range: 20% - 95% RH
Humidity resolution: 1%
Operating temperature: 0°C to 50°C / 32°F to 122°F <95%, non-condensing
Measuring range: 400 - 5000PPM
Accuracy: +/- 5% +50PPM
Warm-up time: 1 minute
Display out of range
CO2: 400 (≤ 400PPM)
HI (≥ 5000PPM)
Temperature: LO (≤ 0°C / 32°F).
HI (≥ 50°C / 122°F).
Humidity: 20% (≤ 20%)
95% (≥ 95%)
CO2 Alarm: Low -400, High 2000
RH% Alarm: Low 35%, High 70%.
CO2 Sound Alarm: Off
Display brightness level: High
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