Wireless dissolved oxygen sensor

The CMA Wireless Dissolved Oxygen Sensor W12 measures oxygen levels in liquids from 0 to 50 mg/L using optical technology based on luminescence quenching.
The sensor provides fast, reliable, and oxygen-consumption-free measurements, distinguishing it from traditional electrochemical sensors.

The sensor features a color OLED display that shows sensor information and readings. This makes it suitable as a standalone measuring instrument.
This wireless CO2 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).

Technical specifications:

• Measuring range: 0 .. 50 mg/L
• Resolution: 0.01 mg/L
• Accuracy: 0 - 10 mg/L < ± 1% / 10 - 20 mg/L < ± 2 %
• Warrantee: 24 months
• OLED display: 0.96” 128 x 64px
• Operating & storage temperature: 0 .. 50°C
• Maximal sampling rate: 1 Hz
• Battery life: 6h when full (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.

Suggested biology and chemistry experiments:

• Water quality experiments: dissolved oxygen levels are used as a general indicator of water quality. Oxygen is essential to life and vital for countless aquatic forms.
• Monitoring dissolved oxygen in an aquarium containing different combinations of plant and animal species
• Measuring changes in dissolved oxygen concentration resulting from photosynthesis and respiration in aquatic plants
• Measuring dissolved oxygen concentration in a stream or lake survey, in order to evaluate the capability of the water to support different types of plant and animal life
• Measure Biological Oxygen Demand (B.O.D.) in water samples containing organic matter that consumes oxygen as it decays
• Determine the relationship between the dissolved oxygen concentration and the temperature of a water sample