Sper Scientific 800051 Indoor Air Quality Wall Monitor

Visible across a large room. Continually monitors the primary IAQ (Indoor Air Quality) parameters: Air Temperature, RH and CO2. 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. Displays readings on a bright green LED display with 2½" high CO2 digits. Also indicates general CO2 levels with green (good), yellow (fair), and red (poor) LED lights. User may set a maximum CO2 audible alarm and adjust temperature and RH readings to match any standard. Automatic Baseline Calibration (ABC) and maintenance free NDIR (non-dispersive infrared) CO2 sensor ensure long-term accuracy, stability and reliability. Comes with an AC adaptor and will stand on a desk-top or wall mount. Dimensions: 12" × 8½" × 2" (304 × 216 × 51 mm) Weight: 2.9 lbs (1315 g).