Wireless oxygen gas sensor

Description

This wireless oxygen gas sensor can be used wirelessly via Bluetooth or wired via USB with the Coach 7 or Coach 7 lite programs/apps on computers (Windows and Mac), Chromebooks, and mobile devices (Android and iOS).
The sensor is designed exclusively for measuring gaseous oxygen concentrations, not for measuring O2 in liquids. Never insert the sensor tube directly into a liquid.
It may take some time for the O2 sensor measurement to stabilize because the gas door must diffuse through a membrane filter into the sensor probe. Because diffusion is a slow process, it may take some time for the sensor to accurately detect and measure the O2 concentration.

The wireless oxygen gas sensor is calibrated by a factory calibration in %. The factory calibration may be sufficient in most cases. You may choose to calibrate your sensor by setting it to 20.9 % while measuring in fresh air.

Technical specifications:

• Measuring range: 0 .. 25% O2
• Resolution: 0,01%
• Warrantee: 24 months
• OLED display: 0.96” 128 x 64px
• Response time: < 30 seconds to detect and respond to 90% of the actual change in oxygen levels
• Maximal sampling rate: 1 Hz
• Battery life: 12h when fully charged (rechargeable)
• Connection: Bluetooth 5, Low Energy (Mac, Android, iOS) Bluetooth 2.1, Classic (Windows) or USB-C 2.0

All specifications of the sensor are described it its Product manual, see downloads.

Suggested biology and chemistry experiments:

• Monitoring oxygen levels in different environments outdoor and indoor (classroom)
• Monitoring changes in oxygen concentration during photosynthesis and respiration of plants
• Monitoring changes in oxygen concentration respiration of animals, insects, or germinating seeds
• Monitoring consumption of oxygen by yeast during respiration of sugars
• Measuring oxygen level during combustion e.g. burning a candle in a closed jar
• Measuring oxygen level in exhaled air