Relative Humidity Sensor (0 .. 100 %)

The humidity sensor is placed in a plastic box with holes, which provide air circulation. The typical response time of the unit is 15 seconds in slowly moving air at 25 °C. The box not only protects the sensor, but also shields it from light. The sensor is slightly light sensitive if the light strikes it in just the right way. For best results, shield the sensor from bright light.

Technical specifications:

Measurement range: 0 .. 100%
Resolution: 0.04% RH
Accuracy ± 2% RH
Response time (time for 90% change in measurement): 15 seconds in slow-moving air
Maximum measurement frequency: 100 kHz (CoachLab II+, WiLab) / 1 MHz (VinciLab 2)
Warranty: 3 years

Technical specifications of the relative humidity sensor are described in the product manual, see downloads.

The Relative Humidity sensor can be used to:

Measure relative humidity in air as part of a weather station
Study transpiration rates of plants by monitoring relative humidity in sealed jars containing plants
Optimize conditions in a greenhouse or terrarium
Determine good days for static electric demonstrations.

The Humidity Sensor BT72i can be directly connected to the analog BT inputs of the CMA interfaces

A ‘P4272-1K BT sensor cable, single’ is required to connect the sensor to the interface.
Please check whether you already have this cable in your stock.