Vaisala HMD110, HMW110 and HMS110 High-Accuracy HVAC Transmitters

Vaisala HMD110, HMW110 and HMS110 Humidity and Temperature Transmitters

The Vaisala HMDW110 Series is the balanced high-accuracy choice for HVAC humidity and temperature measurement in ducts, indoor spaces and outdoor locations.

  • ±2% RH and ±0.2 °C accuracy
  • Wall, duct and outdoor installation models
  • 4–20 mA or Modbus RTU output options
  • Traceable calibration certificate included

Vaisala HMD110, HMW110 and HMS110 High-Accuracy HVAC Transmitters

The Vaisala HMDW110 Series measures relative humidity and temperature in demanding HVAC and building-automation applications. It occupies the balanced middle tier of the Vaisala HMW range: greater accuracy, environmental protection and calibration documentation than the cost-effective HMDW80 Series, while the HMW90 remains the premium choice for the highest indoor wall-mount accuracy.

The series includes the HMW110 for wall mounting, HMD110 for ventilation ducts and HMS110 for outdoor measurement. Each instrument is individually adjusted and supplied with a traceable calibration certificate.

Why Choose the HMDW110 Series?

  • High Accuracy: Measures relative humidity to ±2% RH and temperature to ±0.2 °C within the specified central operating range.
  • Traceable Measurement: Individually adjusted and delivered with a traceable calibration certificate.
  • Proven HUMICAP Sensor: The Vaisala HUMICAP 180R provides dependable stability and long service life.
  • Challenging Conditions: IP65 wall and duct models suit cleanrooms, data centres, industrial HVAC and other demanding locations.
  • Flexible Outputs: Select loop-powered 4–20 mA or RS-485 Modbus RTU communication.
  • Calculated Parameters: Configurable models can output dew point, wet-bulb temperature, enthalpy, absolute humidity or mixing ratio.
  • Serviceable Design: Field checking and calibration are supported using compatible Vaisala instruments or Insight PC software.

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: Choose HMW90 when the highest indoor wall-mount accuracy is the priority. Choose the HMDW110 Series for a strong balance of accuracy, rugged installation options and included calibration documentation. Choose HMDW80 for standard HVAC projects where budget is the main consideration and an included calibration certificate is not required.

HMDW110 Models and Installation

Model FamilyInstallationTypical Application
HMW110 / HMW112 Wall mounted Data halls, cleanrooms, laboratories, plant rooms and controlled indoor spaces
HMD110 / HMD112 Ventilation duct Supply-air, return-air and air-handling-unit duct measurement
HMS110 / HMS112 Outdoor with radiation shield Outdoor reference humidity and temperature for HVAC control

Measurement Performance

SpecificationPerformance
Relative Humidity Range 0–100% RH
RH Accuracy at +10 °C to +30 °C ±2% RH from 0–90% RH; ±3% RH from 90–100% RH
Temperature Accuracy Up to ±0.2 °C within the specified central range
Humidity Sensor Vaisala HUMICAP 180R; catalytic HUMICAP 180V option for selected demanding environments
Temperature Sensor Pt1000
Calibration Individually adjusted; traceable certificate included

Outputs and Configuration

OptionDetails
Analog Two-wire 4–20 mA current outputs
Digital RS-485 with Modbus RTU
Display Available on selected models
Connection Cable gland and screw terminals; M12 option for selected wall models
Calculated Outputs Dew point, wet-bulb temperature, enthalpy, absolute humidity and mixing ratio, depending on configuration

Common Applications

  • Data centres and server rooms
  • Cleanrooms and laboratories
  • Pharmaceutical and medical-device facilities
  • Commercial and industrial HVAC systems
  • Supply-air and return-air ducts
  • Outdoor reference measurement
  • Warehouses and production areas

Vaisala HMDW110 Supplier in Malaysia

Seacom Process Instruments supplies and supports the Vaisala HMW110, HMD110 and HMS110 in Malaysia. Contact our team for assistance selecting the mounting style, output, display, sensor and calculated parameters for your HVAC or building-automation project.

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Specific References

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