User's Guide

20
3. Disable the e-ink screen display.
4. Set CO
2
bad threshold as 1500ppm and polluted threshold as 1000 ppm.
Appendix
Carbon Dioxide Levels and Guidelines
CO
2
Level Description
400 ppm Normal outdoor air level.
400-1000 ppm Typical level indoors with good ventilation.
1000-2000 ppm Poor air quality - requires ventilation.
≥ 2000 ppm
Headaches, sleepiness and stagnant, stale, stuffy air.
Poor concentration, loss of attention, increased heart rate
and slight nausea may also be present.
5000 ppm
Workplace exposure limit (as 8-hour TWA) in most
jurisdictions.
> 40000 ppm
Exposure may lead to serious oxygen deprivation resulting
in permanent brain damage, coma, even death.
-END-
ff2d00
Channel Type Value
ff 2d (Screen Display)
00: Disable the display
ff5401dc05e803
Channel Type Value
ff
54 (Set CO
2
Threshold)
Byte 1: 01 = enable
Byte 2-3: dc 05 => 05 dc = 1500 ppm (Bad threshold)
Byte 4-5: e8 03 => 03 e8 = 1000 ppm (Polluted threshold)