testo 206 – pH measuring instrument

testo 206 – pH measuring instrument

testo 206 – pH measuring instrument

  • External pH probe can be connected for flexible use
  • Automatic final value recognition
  • Robust and waterproof thanks to TopSafe (IP 68)
  • Automatic temperature evaluation (if a probe with temperature sensor is connected)

Click here to download the testo 206 – pH measuring instrument data sheet.


The pH value is an important parameter for guaranteeing product quality across many sectors including, pharmaceutical, food, cosmetics, sanitary, HVAC etc. The testo 206 is an extremely flexible and easy to use pH measuring instrument.

The advantages and features of the testo 206- pH measuring instrument

The main advantage of the testo 206 pH measuring instrument is that it has a connection for an external pH probe. You can use the BNC socket to connect a probe suited to your requirements and swap it as and when needed (probe can be ordered separately). Testo offers pH probes for liquids, a food probe (also for semi-solid media) and a pH glass electrode for use in more aggressive media.

Some pH probes from Testo have an in-built temperature sensor. When this kind of probe is used, the delivered temperature value is evaluated automatically. In the case of probes without a temperature sensor, the temperature can be adjusted manually.

Automatic final value recognition makes the measuring process easier. The TopSafe protective case provided protects the measuring instrument against dirt, water and impact (in compliance with IP 68). This means that the measuring instrument can also be used outdoors or in harsh industrial conditions.

Note: to commission the testo 206 pH measuring instrument, you will need a connectible pH probe (can also be ordered). Testo offers various probes. You can also use suitable pH probes from other manufacturers.

Delivery Scope
testo 206-pH3 pH measuring instrument with BNC interface, incl. TopSafe and belt/wall bracket.

Technical Data:

Temperature – NTC
Measuring range: 0 to 80 °C (depending on the pH probe used)

pH – Electrode
Measuring range: 0 to 14 pH

General technical data
Dimensions: 197 x 33 x 20 mm
Operating temperature: 0 to +60 °C
Housing: ABS with TopSafe, protection type IP68
Protection class: IP68
Battery type: 1 x CR2032
Battery life: 80 h (Auto Off 10 min)
Display type: LCD
Display size: 2 lines
Interface: BNC interface
Number of channels: 2-channel
Measuring rate: 2 measurements per second
Storage temperature: –20 to +70 °C
Weight: 69 g

Call us on 051 392 391 with your instrument problems and we will recommend a solution - advice is FREE!