The CMA wireless humidity sensor measures relative humidity in a range between 0 and 100%, as well as air temperature. Based on these measurements, it calculates the dew point. The sensor, housed in a perforated aluminium probe, uses a polymer-based capacitive element in combination with a silicon temperature sensor to measure both
humidity and temperature.
The humidity sensor is equipped with an OLED colour display that shows sensor information and measured values. This makes the sensor suitable for use as a stand-alone measuring instrument.
The sensor can be used wirelessly via Bluetooth or wired via USB with the Coach 7 or Coach 7 Lite programmes/apps on computers (Windows and Mac), Chromebooks and mobile devices (Android and iOS).
Technical specifications:
-Measuring ranges: humidity 0 .. 100% RH / temperature – 40 .. 125 °C
-Accuracy: ± 2% RH (@0 ~ 80%RH) / ± 0.25 °C (@-40 ~ 60°C)
-Warranty: 36 months
-OLED display: 0.96" 128 x 64px
-Response time: 15 s at 25 °C with slow air flow
-Maximum sample frequency: 60 Hz
-Battery life: 12 hours when fully charged (rechargeable)
-Connection: Bluetooth 5, Low Energy (Mac, Android, iOS) Bluetooth 2.1, Classic (Windows) or USB-C 2.0
-All sensor specifications can be found in the Manual, see Downloads.
Suggestions for science practicals:
-Measure the humidity and temperature in the classroom over the course of a day to observe daily fluctuations
-Compare the humidity in different rooms of a school to see differences in the microclimate
-Track changes in outdoor humidity and temperature and correlate them with local weather reports
-Measure how quickly a sealed container reaches equilibrium humidity after adding water
-Study the effect of a fan or ventilation on the humidity and temperature in a sealed space
-Observe dew formation by cooling a surface and measuring the dew point
-Compare humidity measurements in warm and cold environments to see how temperature affects relative humidity
-Monitor the humidity and temperature in a greenhouse or terrarium over time
-Test how well a humidifier works in different rooms
humidity and temperature.
The humidity sensor is equipped with an OLED colour display that shows sensor information and measured values. This makes the sensor suitable for use as a stand-alone measuring instrument.
The sensor can be used wirelessly via Bluetooth or wired via USB with the Coach 7 or Coach 7 Lite programmes/apps on computers (Windows and Mac), Chromebooks and mobile devices (Android and iOS).
Technical specifications:
-Measuring ranges: humidity 0 .. 100% RH / temperature – 40 .. 125 °C
-Accuracy: ± 2% RH (@0 ~ 80%RH) / ± 0.25 °C (@-40 ~ 60°C)
-Warranty: 36 months
-OLED display: 0.96" 128 x 64px
-Response time: 15 s at 25 °C with slow air flow
-Maximum sample frequency: 60 Hz
-Battery life: 12 hours when fully charged (rechargeable)
-Connection: Bluetooth 5, Low Energy (Mac, Android, iOS) Bluetooth 2.1, Classic (Windows) or USB-C 2.0
-All sensor specifications can be found in the Manual, see Downloads.
Suggestions for science practicals:
-Measure the humidity and temperature in the classroom over the course of a day to observe daily fluctuations
-Compare the humidity in different rooms of a school to see differences in the microclimate
-Track changes in outdoor humidity and temperature and correlate them with local weather reports
-Measure how quickly a sealed container reaches equilibrium humidity after adding water
-Study the effect of a fan or ventilation on the humidity and temperature in a sealed space
-Observe dew formation by cooling a surface and measuring the dew point
-Compare humidity measurements in warm and cold environments to see how temperature affects relative humidity
-Monitor the humidity and temperature in a greenhouse or terrarium over time
-Test how well a humidifier works in different rooms
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Properties
- CMA/W30