VAISALA HMM105 Digital Humidity Module


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VAISALA HMM105 Digital Humidity Module

The Vaisala HUMICAP®Digital Humidity Module HMM105 is an open frame module for integration into environmental chambers. The modules provide an I2C output for relative humidity (RH) or dew point (Td). The module consists of a detachable probe assembly – a probe head with M10x1 threads and a flex cable – and the module circuit board. The probe assembly is 30 cm in length. The module incorporates the Vaisala HUMICAP®180R sensor which ensures excellent measurement accuracy.


Reliable for OEM’s


The HMM105 probe head works in freezing conditions (-40 °C) and also in temperatures up to +180 °C in continuous use. In short term use, the probe head can be exposed to temperatures up to +200 °C. The HMM105 is intended for OEM chamber manufacturers for integration into test chambers and incubators.



▪Digital I2C communication interface available

▪Full temperature compensation over the operating temperature range of -40 °C ... +180 °C

▪High temperature tolerance, suitable for heat sterilization up to +200 °C

▪Excellent measurement accuracy with Vaisala HUMICAP® 180R sensor


▪Detachable probe assembly for easy installation

▪Probe head with M10x1 threads

▪2-point NIST traceable calibration (certificate included)

▪Applications: test chambers, incubators


Click to view the datasheet

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  • VAISALA HMM105 Digital Humidity Module