Wireless pH sensor

The Wireless pH sensor measures the degree of acidity/pH value of a solution in the range from 0 to 14 pH. The pH electrode is connected to the sensor box by means of a coax cable and a BNC connector.
The sensor is equipped with an OLED color display which shows some sensor information and the measured by the sensor values. This makes the sensor suitable to use as an independent measuring instrument.


The pH 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 pH electrode is supplied in a storage bottle containing a protective solution. When it is not being used, it must be kept in this storage solution. During measurements, the electrode must be dipped in the solution for about 1 cm.

Technical specifications:

• Measuring range: 0 .. 14 pH
• Resolution: 0.001 mV
• Warrantee: 36 months (electrode & battery excluded)
• OLED display: 0.96” 128 x 64px
• Storage solution: pH 4 KCl solution
• Maximal sampling rate: 4 Hz (Wireless, 1000 Hz with USB cable)
• Battery life: 13h when fully charged (rechargeable)
• Connection: Bluetooth 5, Low Energy (Mac, Android, iOS) Bluetooth 2.1, Classic (Windows) or USB-C 2.0

Technical specifications of the sensor are descibed it its User's guide.

Suggested biology and chemistry experiments:

• Measurements of the pH of different acids and bases
• Acid-base titration experiments
• Monitoring pH during chemical reactions
• Investigations of water quality in streams and lakes