Edge ECO – Technical Information

General Guideline
Please read the following instruction carefully.
– Do not be used as outdoors
– Do not place near water and heat
– Do not block ventilation
– Do not place at hazard environment
– Excess of pollutant may damage sensors
– Do not be used as medical or professional instruments

Air Quality Recommended Table

Sensing TechnologyUnitPoorGoodExcellentEffective RangeResolution
Temperature*Digital#< 25.520-25.5-40 to 125°C0.1°C
Humidity*Digital%#< 7040-700-100%1%
CO2*NDIRppm#> 1000<= 1000<= 8000-10000ppm1ppm
TVOC*MEMSppb#185< 185<= 620-10000ppb1ppb
µg/m3600<= 600<= 2000-3097µg/m30.31µg/m3
HCHO*Two-electrode Electrochemical µg/m3#100<= 100<= 700-1600µg/m31µg/m3
PM2.5****Laser scattering µg/m3#> 37.5<= 37.5<= 250-500µg/m31µg/m3
PM0.3/0.5/1.0Laser scattering
H2S***MOSppb#> 300<= 300<= 1000-3000ppb1ppb
ppm0.3<= 0.3<= 0.10-30ppm0.001ppm
NH3**MOSppb#> 5000<= 5000<= 20000-30000ppb1ppb
ppm5<= 5<= 20-30ppm0.001ppm
*1ppm = 1000ppb

References

#Edge ECO standard units
*based on https://www.iaq.gov.hk/wp-content/uploads/2021/04/new-iaq-guide_eng.pdf
**based on Ashrae 15 https://www.araner.com/blog/regulations-chilling-plant-r717/
***based on WHO https://www.euro.who.int/__data/assets/pdf_file/0019/123076/AQG2ndEd_6_6Hydrogensulfide.PDF
****based on WHO (24hrs) https://apps.who.int/iris/bitstream/handle/10665/69477/WHO_SDE_PHE_OEH_06.02_eng.pdf
https://www.canada.ca/en/health-canada/services/air-quality/residential-indoor-air-quality-guidelines.html

How Smelly is Ammonia? https://www.osha.gov › sites › default › files › 2019-03 › fs5-howsmelly.pdf

https://www.osha.gov/hydrogen-sulfide/hazards