TENMARS ST-502 Desktop Indoor Air Quality (CO2) Monitor

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The Tenmars ST-502 Desktop Indoor Air Quality (IAQ) Monitor measures Carbon Dioxide (CO2), Relative Humidity (%RH), Temperature and Ventilation Rate in an indoor environment such as Home, Aged Care Homes, Hospitals, Offices, Classroom, Storage, Laboratories and others.

Applicable in building air conditioning system (HVAC) monitoring and Indoor air quality monitoring.


  • Non-Dispersive Infrared (NDIR) CO2 sensor ensures long term stability and durability
  • 4 Measurements-CO2/CO2 Ventilation Rate/Temperature/Humidity
  • Large display
  • Easy -to-use PC software for parameter settings and analysis
  • Fast USB download
  • CO2/Temperature/Humidity high,low alarm setting
  • Set on the table or wall-Mounted (use 1/4”tripod nut)
  • Supplied with Statement of Conformity to ensure product meets ISO 9001 Quality standards

2 Years Warranty 

PDF Download    Tenmars ST-502 User Manual

PDF Download   Tenmars ST-502 Datasheet

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