Vaisala HMD80, HMW80 and HMS80 HVAC Transmitters

Vaisala HMD80, HMW80 and HMS80 HVAC Transmitters

The Vaisala HMDW80 Series is the cost-effective choice for routine humidity and temperature measurement in standard building-automation and HVAC applications.

  • ±3% RH standard-HVAC accuracy
  • Wall, duct and outdoor installation models
  • Easy installation with low maintenance requirements
  • Calibration certificate is not supplied

Vaisala HMD80, HMW80 and HMS80 Cost-Effective HVAC Transmitters

The Vaisala HMDW80 Series provides dependable ±3% RH humidity and temperature measurement for standard HVAC and building-automation applications. It is the budget-friendly option in the Vaisala HMW range, combining straightforward installation, reliable operation and low maintenance requirements.

The family includes HMW80 wall-mounted transmitters, HMD80 duct-mounted transmitters and HMS80 outdoor transmitters. Select the installation style and output configuration required by the building-management system.

Important calibration note: The HMDW80 Series is not supplied with a calibration certificate. If your project requires an included traceable calibration certificate, select the HMDW110 Series or the premium HMW90 Series.

Why Choose the HMDW80 Series?

  • Cost-Effective HVAC Measurement: A practical option for routine building-automation projects where ±3% RH performance is suitable.
  • Multiple Installation Styles: Wall, duct and outdoor models cover common HVAC measurement locations.
  • Low Maintenance: Designed for dependable operation with minimal servicing.
  • Easy Installation: Installation-friendly enclosures reduce project and commissioning effort.
  • Calculated Parameters: Selected configurations can provide dew point, wet-bulb temperature or enthalpy instead of relative humidity.
  • Optional Display: Display models are available for local indication.

Selecting the Correct Vaisala HMW Series

SeriesPositionHumidity AccuracyCalibration CertificateBest Fit
HMW90 Premium Up to ±1.7% RH Included Highest-accuracy indoor wall measurement
HMW110 / HMD110 / HMS110 Balanced high-accuracy Up to ±2% RH Included Demanding wall, duct and outdoor HVAC
HMW80 / HMD80 / HMS80 Cost-effective Up to ±3% RH Not supplied Routine building automation

Selection note: HMDW80 is suitable when standard HVAC accuracy and project economy are the priorities. It should not be presented as equivalent to HMW110 or HMW90 where higher accuracy or traceable calibration documentation is required.

HMDW80 Models and Installation

Model FamilyInstallationTypical Application
HMW80 Series Indoor wall Rooms, offices and general occupied spaces
HMD80 Series Ventilation duct Supply-air, return-air and air-handling ducts
HMS80 Series Outdoor Outdoor reference measurement for HVAC control

Measurement and Product Positioning

SpecificationDetails
Measured Parameters Relative humidity and temperature; model dependent
Relative Humidity Range 0–100% RH
Humidity Accuracy ±3% RH for standard HVAC measurement
Installation Wall, duct or outdoor model
Local Display Available on selected models
Calibration Certificate Not supplied with HMDW80

Common Applications

  • Commercial offices and general occupied spaces
  • Shopping centres and public buildings
  • Schools and institutional facilities
  • Standard supply-air and return-air ducts
  • Outdoor reference measurement for HVAC systems
  • Cost-sensitive building-automation projects

When to Select HMW110 or HMW90 Instead

  • Select HMDW110 for ±2% RH performance, IP65 options and an included traceable calibration certificate.
  • Select HMW90 for the highest indoor wall-mount accuracy, at up to ±1.7% RH.

Vaisala HMDW80 Supplier in Malaysia

Seacom Process Instruments supplies the Vaisala HMW80, HMD80 and HMS80 in Malaysia for standard HVAC and building-automation applications. Contact our team to confirm the mounting style, measured parameters, output and display required for your project.

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Specific References

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