HMW90
Humidity and Temperature Transmitter Series HMW90
±1.7%RH wall transmitters with a certificate for demanding HVAC
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Typical applications include museums and archives, production and warehouse facilities, data centers, laboratories, and testing environments. 5-year warranty is valid for instruments purchased in 2021 and beyond.
The HMW90 series measures relative humidity and temperature in indoor environments, where high accuracy, stability, and reliable operation are required. The HMW90 is a flexible product family with a variety of options and features, both analog and digital output models are available. The sensors are exceptionally easy to configuration, install, and adjust in the field. Calculated humidity parameters (Td, x, h, Tw, a, T-Td).
The following models are available:
- TMW92 T transmitter, current output
- TMW93 T transmitter, voltage output
- HMW92(D) RH+T transmitter, current output (with display)
- HMW93(D) RH+T transmitter, voltage output (with display)
- HMW95(D) RH+T transmitter (with display), Modbus RTU communication
- TMW90 T transmitter, configurable analog output model
- HMW90 RH+T transmitter, configurable analog/digital model
The HMW90 and TMW90 transmitters are available in two color options: standard white and black.
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Features
- Analog and digital outputs
- Easy installation, configuration, and field adjustment
- Humidity parameter options: relative humidity, dew point, mixing ratio, enthalpy, wet bulb temperature, dew point depression, and absolute humidity
- Full 0 … 100%RH measurement range
- Accuracy up to ±1.7%RH
- User exchangeable humidity and temperature module
- Traceable calibration, certificate included
- Available in two colors
Installation of Vaisala HUMICAP® Humidity and Temperature Transmitter Series HMW90
Gallery
Example of a decorative cover for GMW90 and HMW90 on a brick wall 
An example of a decorative cover for GMW90 and HMW90 with wallpaper 
Decorative covers for GMW90 and HMW90
Configure the instrument
Choose the model, probes and accessories. Incompatible combinations are blocked as you go; the remaining rules are checked when the instrument is added to the quote.
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HMW90
A code can be pasted and the configuration builds itself.
Services and accessories
They are quoted separately: the instrument need not be configured.
Key benefits
Two output choices
Both analog and digital output models available.
Easy to use
Exceptionally easy configuration, installation, and field adjustment.
Easy maintenance
Field exchangeable measurement modules for easy maintenance.
Documents
- DatasheetWall-mounted Vaisala HMW90 Series HUMICAP Humidity and Temperature Transmitters measure relative humidity and temperature in indoor HVAC applications, where high accuracy, stability, and reliable operation are required.
- User guideThis manual provides information for installing, operating, and maintaining HMW90 series transmitters. All transmitter models in the HMW90 series are covered, which means that some information in the manual is model-specific.