The Supco IAQ50 indoor air quality monitor is a wall-mounted or desktop device that simultaneously displays carbon dioxide (CO2/ppm) concentration, temperature (degrees C or F), and % relative humidity, has an internal non-dispersive infrared (ndIR) sensor, and a programmable, audible, and visible CO2 concentration alarm. An indoor air quality (IAQ) monitor is used for diagnostics, to identify CO2 concentration levels in sick building syndrome, and for continuous monitoring of residential, and professional environments, such as warehouses, restaurants, garages, and greenhouses.
This IAQ monitor has an LCD display to simultaneously show CO2 concentration, air temperature, and % relative humidity. The device warms up in 30 seconds. Its time-weighted average (TWA) is 8 hours, and its short-term exposure limit (STEL) is 15 minutes weighted average. The device emits an audible beep of 80 decibels that can be manually stopped, and the beep automatically stops when the CO2 reading falls below the lower limit. It is factory-calibrated at 400ppm CO2 concentration for automatic baseline calibration (ABC), and can be manually CO2-calibrated. It has a long time drift compensation, and minimum/maximum average recall. The non-condensing operational range is +32 to 122 degrees F (0 to 50 degrees C), and it has a -4 to 140 degrees F (-20 to 60 degrees C), non-condensing storage range. An RS-232 port provides a computer connection. The IAQ50 works with an included 12V adapter, and comes with a 2-year.
Specifications CO2 range 0 to 2000ppm, 2001 to 9999ppm (out of scale) CO2 resolution 1ppm CO2 accuracy + or - 50ppm, + or -5%rdg (0 to 2000); not specified for out of scale Temperature range -10.0 to 60.0 degrees C (14 to 140 degrees F) Temperature resolution 0.1 degrees C (0.1 degrees F) Temperature accuracy + or - 0.6 degrees C (+ or - 0.9 degrees F) Humidity range 0.0 to 99% non-condensing Humidity resolution 0.1% Humidity accuracy + or -3% (10 to 90%) + or -5% (others) Dimensions 5 x 5 x 2.5 inches (H x W x D) Weight 0.92 lb.  
H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.
An indoor air quality (IAQ) monitor is used for continuous monitoring of various parameters by professionals and hobbyists in the home health, aquaculture, agriculture, automotive, and food and beverage industries. Common parameters include relative % humidity, temperature, and carbon dioxide (CO2) concentration levels. An IAQ monitor can be handheld, desktop, and wall mount, or a combination of these types.
Sealed Unit Parts Co. (SUPCO), Inc. manufactures precision electronic and test instruments, and replacement parts for the heating, ventilation, air-conditioning, and refrigeration (HVAC) industries. SUPCO is headquartered in Allenwood, NJ, and has been in operation since 1945.
What's in the Box?
IAQ monitor, IAQ50
12VDC adapter
Instructions