Sensors for National Instruments DAQ

Relative Humidity Sensor

The HSN-100 can provide measurements of relative humidity from 20 to 85% (+/-5%) over a temperature range from 0 degrees C to +50 degrees C. The HSN-100 is a sensor designed for measuring the relative humidity (RH) in environmental chambers, plant growth chambers, model ecosystems, or the atmosphere.


Input Range

20% to 85% RH (+/- 5%)

Output Range

0.2V to 0.85V


Multiply the output voltage in Volts by 100 to get the %RH.

Measurement Instructions
1. Install the IX-ELVIS board into the National Instrument ELVIS platform or the IX-myDAQ board onto the NI myDAQ. If using ELVIS, connect the ELVIS power supply to the ELVIS unit and connect it to the computer via a USB cable. Ensure both of the power switches are in the “on” position. For the myDAQ, connect it to the computer using the USB cable.

2. Connect the MINI DIN7 connector of the DCN-100 to either CH1 or CH2 of either the IX-ELVIS or IX-myDAQ board.

3. Open the recording software; select the channel that the HSN-100 is plugged into and ensure the range is set to 0V to 1V.

4. Multiply the output voltage in Volts by 100 to get the %RH.

*Note: The signal may be inverted if the NI myDAQ setup is used.
  • Model: HSN-100

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