HD21ABE17 IAQ Meter


Introducing the HD21ABE Datalogger
– a trusted and reliable solution for evaluating Indoor Air Quality (IAQ) in South Africa and beyond.

With a robust memory capacity of 67,600 recordings divided into 64 blocks, this device ensures accurate and comprehensive data logging. Utilizing the user-friendly DeltaLog10 software, you can effortlessly analyze and interpret the recorded information. The HD21ABE adheres to reference standards such as ASHRAE 62.1-2004 and Legislative Decree 81/2008, making it a suitable choice for assessing IAQ in various environments, including schools, offices, and indoor spaces. It is also invaluable for studying the Sick Building Syndrome, optimizing HVAC systems, improving microclimate conditions in factories, and conducting building automation checks. Trust the HD21ABE Datalogger to provide reliable insights and contribute to healthier, more comfortable indoor environments.

Technical Specs

The instruments simultaneously measure the following parameters:

  • Carbon Dioxide (CO2)
  • Carbon Monoxide (CO)
  • Atmospheric Pressure
  • Temperature
  • Relative Humidity

The instrument also calculates the following:

  • Dew Point
  • Wet Bulb Temperature
  • Absolute Humidity
  • Mixing Ratio
  • Enthalpy

Reference Standards: The measurements and calculations are compliant with reference standards such as ASHRAE 62.1 – 2004 and Legislative Decree 81/2008, ensuring accurate evaluation of indoor air quality and adherence to regulations regarding confined spaces. These standards apply to various environments, including schools, offices, indoor spaces, kitchens, baths, changing rooms, swimming pools, and other areas with high humidity. The instrument helps monitor and optimize air quality by identifying possible chemical, physical, and biological contaminants, contributing to a healthier and more comfortable environment.