Relative Humidity Sensor

Description

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. Attention: The sensor cable BT – IEEE1394 needed to connect the sensor to an interface is not supplied with the sensor and has to be purchased separately (CMA Art. Nr BTsc_1 or BTsc_1Short).