The CMA wireless oxygen gas sensor measures the gaseous oxygen concentration in the range from 0 to 25%. It uses optical technology based on luminescence. The sensor is equipped with an OLED colour display that shows sensor information and the measured values. This makes the sensor suitable for use as a stand-alone measuring instrument.
This wireless oxygen gas 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).
The sensor is designed exclusively for measuring gaseous O₂ concentrations, not for measuring O₂ in liquids. Never insert the sensor tube directly into a liquid.
It may take some time for the O₂ measurement to stabilise, as the gas must diffuse through a membrane filter. Because diffusion is a slow process, it may take a while for the sensor to accurately detect and measure the O₂ concentration.
The wireless oxygen gas sensor comes with a factory calibration in %. The factory calibration is sufficient in most cases.
You can choose to calibrate your sensor by setting it to 20.9% while measuring in fresh outdoor air.
Technical specifications:
-Measuring range: 0 .. 25% O2
-Resolution: 0.01%
-Warranty: 24 months
-OLED display: 0.96" 128 x 64px
-Maximum sample frequency: 1 Hz
-Response time: < 30 seconds to measure 90% of the actual change in oxygen levels
-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 biology and chemistry practicals:
-Measuring oxygen levels in different environments, both indoors and outdoors (classroom)
-Measuring changes in oxygen concentration during photosynthesis and respiration in plants
-Investigating changes in oxygen concentration during respiration in animals, insects or germinating seeds
-Measuring oxygen consumption by yeast during respiration of sugars
-Measuring oxygen levels during combustion, for example, burning a candle in a sealed jar
-Measuring oxygen levels in exhaled air
This wireless oxygen gas 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).
The sensor is designed exclusively for measuring gaseous O₂ concentrations, not for measuring O₂ in liquids. Never insert the sensor tube directly into a liquid.
It may take some time for the O₂ measurement to stabilise, as the gas must diffuse through a membrane filter. Because diffusion is a slow process, it may take a while for the sensor to accurately detect and measure the O₂ concentration.
The wireless oxygen gas sensor comes with a factory calibration in %. The factory calibration is sufficient in most cases.
You can choose to calibrate your sensor by setting it to 20.9% while measuring in fresh outdoor air.
Technical specifications:
-Measuring range: 0 .. 25% O2
-Resolution: 0.01%
-Warranty: 24 months
-OLED display: 0.96" 128 x 64px
-Maximum sample frequency: 1 Hz
-Response time: < 30 seconds to measure 90% of the actual change in oxygen levels
-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 biology and chemistry practicals:
-Measuring oxygen levels in different environments, both indoors and outdoors (classroom)
-Measuring changes in oxygen concentration during photosynthesis and respiration in plants
-Investigating changes in oxygen concentration during respiration in animals, insects or germinating seeds
-Measuring oxygen consumption by yeast during respiration of sugars
-Measuring oxygen levels during combustion, for example, burning a candle in a sealed jar
-Measuring oxygen levels in exhaled air
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Properties
- CMA/W38