Sper Scientific Indoor Air Quality Meter

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Monitor Indoor Air Quality (IAQ) in public spaces with potentially high levels of CO₂ (carbon dioxide).

Poor air quality may cause tiredness, inability to concentrate, and even illness (i.e., Sick Building Syndrome). This instrument is ideal for monitoring indoor air quality in crowded public spaces with potentially high levels of CO₂ (carbon dioxide) such as offices, factories, classrooms, hospitals and hotels. The same measurement parameters can also be used to test air from HVAC equipment. Backlit simultaneous display of CO₂ level, humidity and air temperature, or the user may choose a rotating display of dew point and wet bulb temperature instead of air temperature. Also calculates TWA (Time Weighted Average) and STEL (Short-Term Exposure Limit). Simple user calibration of CO₂ and RH. Features audible CO₂ threshold alarms, min/max/avg, hold and a computer interface. NDIR (non-dispersive infrared) technology ensures long-term accuracy, stability and reliability. In order to connect this model to a computer to stream data, you will need the USB Cable 840054 and Data Acquisition Software 840052. Comes in a hard carrying case with 4 AA batteries. Uses optional AC Adapter (840027).

CO₂
Humidity
Dew Point
Air Temperature
Wet Bulb Temperature

Dimensions: 8½" × 2¾" × 2¼" (216 × 70 × 57 mm)
Weight: 9.6 oz (272 g)

Specifications

	Range	Resolution	Accuracy
Air Temperature	14 to 140ºF -10 to 60ºC	0.1	0.9ºF 0.6ºC
RH	0 to 100%		±3% (10 to 90%) ±5% (otherwise)
Dew Point	8 to 140ºF -13.3 to 60ºC
Wet Bulb	-100 to 140ºF -73.4 to 60ºC
CO₂	0 to 5000 ppm	1 ppm	±30 ppm ±5% rdg

Standards

Carbon Dioxide (CO₂) Levels and Exposure Effects
250 to 350 ppm	Background (normal) outdoor air level.
350 to 1,000 ppm	Typical level found in occupied spaces with good air exchange.
1,000 to 2,000 ppm	Level associated with complaints of drowsiness and poor air.
2,000 to 5,000 ppm	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.
> 5,000 ppm	Exposure may lead to serious oxygen deprivation resulting in permanent brain damage, coma and even death.

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