The Vaisala HMX110 Series provides accurate humidity and temperature measurement for demanding indoor, duct and outdoor HVAC applications.
The Vaisala HUMICAP® HMX110 Series provides accurate and stable humidity and temperature measurement for demanding HVAC and building-automation applications. It offers greater accuracy, stronger environmental protection and traceable calibration documentation than the cost-effective HMDW80 Series.
The family includes HMW110 wall transmitters, HMD110 duct transmitters and HMS110 outdoor transmitters. It also includes temperature-only wall, duct and immersion models for projects that use the same enclosure and integration platform across different measurement points.
The humidity models measure 0–100% RH with accuracy up to ±2% RH from 0–90% RH within the specified central temperature range. Temperature is measured from −40 to +60 °C with accuracy up to ±0.2 °C at +20 °C.
Each transmitter is individually adjusted and supplied with a traceable calibration certificate. Vaisala HUMICAP® 180R and chemically resistant HUMICAP® 180V sensor options are available according to the measurement environment.
The HMDW110 Series can be ordered with two-wire 4–20 mA outputs or separately powered RS-485 communication using Modbus RTU. Configurable 110 models support customer-specific output settings, calculated humidity parameters and special analog scaling.
Humidity models can provide relative humidity, temperature, dew point, wet-bulb temperature and enthalpy. Optional displays provide local indication, while Vaisala Insight PC software supports configuration, diagnostics and calibration.
The 112 humidity models are preconfigured for standard current outputs. The configurable 110 models can be ordered with customer-specific analog scaling, calculated parameters or Modbus RTU functionality.
| Model | Measurement and mounting | Configuration | Display | Recommended use |
|---|---|---|---|---|
| Wall-mounted models | ||||
| HMW112 | Humidity and temperature, wall mounted | Standard 2-wire 4–20 mA outputs | Optional | Standard high-accuracy indoor HVAC measurement |
| HMW110 | Humidity and temperature, wall mounted | Configurable 4–20 mA or Modbus RTU | Optional | Special scaling, calculated parameters or digital integration |
| TMW110 | Temperature only, wall mounted | Configurable 4–20 mA or Modbus RTU | Optional | High-accuracy indoor temperature measurement |
| Ventilation-duct models | ||||
| HMD112 | Humidity and temperature, duct mounted | Standard 2-wire 4–20 mA outputs | Optional | Standard high-accuracy ventilation-duct measurement |
| HMD110 | Humidity and temperature, duct mounted | Configurable 4–20 mA or Modbus RTU | Optional | Special scaling, calculated parameters or digital integration |
| TMD110 | Temperature only, duct mounted | Configurable 4–20 mA or Modbus RTU | Optional | High-accuracy ventilation-duct temperature measurement |
| Outdoor models | ||||
| HMS112 | Humidity and temperature, outdoor | Standard 2-wire 4–20 mA outputs | Optional | Standard outdoor reference measurement with radiation shield |
| HMS110 | Humidity and temperature, outdoor | Configurable 4–20 mA or Modbus RTU | Optional | Outdoor measurement with special scaling or digital integration |
| Immersion temperature model | ||||
| TMI110 | Temperature only, pipe or duct immersion | Configurable 4–20 mA or Modbus RTU | Optional | Heating water, cooling water and air-duct temperature measurement |
Model-number guide: choose an 112 humidity model for standard preconfigured 4–20 mA outputs. Choose a configurable 110 model for Modbus RTU, calculated humidity parameters or special current-output scaling. Select HMW for walls, HMD for ducts, HMS for outdoors, or a T-model when only temperature is required.
These Vaisala HVAC transmitter families serve different measurement and control requirements. Choose according to accuracy, mounting location, communication method, calibration documentation and whether carbon-dioxide measurement is required.
| Selection point | Vaisala HMX80 Series | Vaisala HMX110 Series | Vaisala HMW90 Series | Vaisala XMW85 Series |
|---|---|---|---|---|
| Product position | Cost-effective routine HVAC | Balanced high-accuracy HVAC | Premium indoor wall measurement | Smart indoor Modbus and air-quality measurement |
| Measured parameters | Humidity and temperature; temperature-only models available | Humidity and temperature; temperature-only models available | Humidity and temperature; temperature-only models available | Humidity and temperature, with optional CO₂ measurement |
| Humidity accuracy | Up to ±3% RH | Up to ±2% RH | Up to ±1.7% RH | Up to ±3% RH |
| Installation options | Indoor wall, duct, humid-area wall and outdoor | Indoor wall, duct, outdoor and immersion temperature | Indoor wall only | Indoor wall only |
| Output and communication | Current, voltage or Modbus RTU, depending on model | 4–20 mA or Modbus RTU, depending on model | Current, voltage or Modbus RTU, depending on model | Modbus RTU on all models |
| Local display | Available on selected models | Optional | Available on selected models | Available on selected models |
| Calibration certificate | Not supplied | Traceable certificate included | Traceable certificate included | Confirm according to selected model and project requirement |
| Main reason to choose | Simple, economical measurement across multiple mounting styles | Better accuracy and documentation for demanding HVAC locations | Highest humidity accuracy for an indoor wall transmitter | Modbus integration or combined CO₂, humidity and temperature measurement |
Quick selection: choose the 80 Series for routine HVAC where cost and mounting flexibility are the priorities. Choose the 110 Series when better accuracy and a traceable certificate are required for wall, duct or outdoor measurement. Choose HMW90 for premium indoor wall measurement. Choose XMW85 for indoor Modbus systems, especially when CO₂ must be measured with humidity and temperature.
Before ordering, confirm the mounting location, measured parameters, humidity and temperature range, 4–20 mA or Modbus RTU interface, display requirement, calculated parameter, special scaling, sensor type and calibration requirements.
For Modbus projects, also provide the controller communication settings and network arrangement. For analog models, confirm the power supply, loop resistance, controller input range and required output scaling.
Seacom Process Instruments supplies and supports the Vaisala HMD110, HMW110 and HMS110 Series in Malaysia for cleanrooms, laboratories, data centres, commercial buildings, ventilation systems and demanding building-automation projects.
Our team can assist with mounting style, humidity sensor, analog or Modbus output, display, calculated parameter, special scaling, controller integration, installation and calibration planning.
Contact Seacom with your measurement location, required accuracy, output interface, operating conditions and project documentation requirements so we can recommend a suitable HMDW110 configuration.
The Vaisala HMDW80 Series provides cost-effective humidity and temperature measurement for routine HVAC and building-automation applications.
The Vaisala HMW90 Series provides high-accuracy humidity and temperature measurement for demanding indoor HVAC and controlled-environment applications.
The Vaisala Indigo520 Supervisor manages up to 100 compatible compact humidity and temperature probes through one host unit. It provides local visibility for the maintenance team and Modbus TCP communication for data centre BMS integration.
Expected availability: early 2027. Enquire with Seacom for configuration and delivery confirmation.
The Vaisala HMP7 is designed for continuously humid, rapidly changing and near-condensing environments. Probe heating helps prevent condensation while maintaining reliable process measurement.
The Vaisala HMP3 is a high-accuracy, field-maintainable probe for industrial HVAC, air-handling units, cleanrooms, paint booths and environmental chambers.
The Vaisala HMD60 Series provides high-accuracy humidity and temperature measurement for demanding HVAC ducts and light-industrial applications.
The Vaisala HMP155 provides stable humidity and temperature measurement for automatic weather stations, road-weather systems, airports, research sites and demanding outdoor monitoring.
The Vaisala HMDW80 Series provides cost-effective humidity and temperature measurement for routine HVAC and building-automation applications.
The Vaisala HMT140 Wi-Fi Data Logger has been discontinued and is no longer recommended for new monitoring systems.
The Vaisala PTU300 combined barometric pressure, relative humidity and temperature in one transmitter. The series is discontinued and has been replaced by a suitable Indigo520 barometric-pressure configuration with an application-specific HMP probe.
The Vaisala HMP5 provides high-accuracy humidity and temperature measurement in ovens, dryers, kilns and other processes operating at temperatures up to +180 °C.
The Vaisala Origo10 Series comprises modular HVAC transmitters with interchangeable probes for humidity, temperature, CO2 and dew-point measurement.
Available with analog, Modbus RTU and BACnet MS/TP outputs, wall or duct mounting, an optional display and an IP65-rated enclosure.
The Vaisala GMW90 Series provides stable wall-mounted carbon-dioxide and temperature measurement, with optional humidity, for demanding HVAC and building-automation applications.
The Vaisala HMW90 Series provides high-accuracy humidity and temperature measurement for demanding indoor HVAC and controlled-environment applications.
The Vaisala HMT360 Series was an intrinsically safe transmitter platform for humidity, temperature and moisture measurement in hazardous areas. It is discontinued and replaced by the Vaisala HMT370EX with an application-specific probe.
The Vaisala XMP10 Series comprises compact humidity and temperature probes offering accuracy levels up to ±1% RH and ±0.1 °C for demanding HVAC, data-centre and critical-environment applications.
The probes feature analog or Modbus RTU outputs, a standard M8 connector, an IP65-rated body and compatibility with Vaisala Origo10 modular HVAC transmitters.
The Vaisala HMM100 provides reliable humidity measurement and a configurable analog output for integration into environmental chambers and OEM equipment.
The Vaisala HMM170 provides accurate and stable humidity and temperature measurement for demanding environmental chambers, including vacuum and pressurised applications.
