This is an indoor air quality investigation conducted by Building Science Corporation in response...
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Supco IAQ50 Wall Mounted Indoor Air Quality Monitor, 0 to 2000 ppm, 1 ppm Resolution, +/-50 ppm Accuracy

List Price:$199.93
Price: $172.74
You Save: $27.19 (14%)
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Design and Protocol for Monitoring Indoor Air Quality (Astm Special Technical Publication// Stp)
List Price:$53.00
Price: $53.00

How to Control the HVAC, Lighting systems without using Building Management Sysem?
I very recently want to know, how to control and monitor the Construction HVAC system, Lighting system, indoor air quality without using Building...
by man power!