Food, Products, Testo

Digital pH Meter– testo 206


The pH meter testo 206 equips you to measure the temperature and pH value in different media like liquid, semi solid or even more aggressive media for guaranteeing the quality of products in the food sector, the cosmetics industry and the sanitary and HVAC sector, etc.
“pH value and temperature are key parameters for guaranteeing the quality of products in the food sector, the cosmetics industry and the sanitary and HVAC sector, etc. With the testo 206-pH1 pH temperature measuring instrument, you can reliably measure the temperature and pH value in liquids (e.g. drinking or heating water) or even in viscoplastic media.
The advantages of the pH/temperature measuring instrument at a glance
The testo 206-pH1 temperature and pH measuring instrument boasts the following features:

the pH probe is ideal for measurements in liquids (and can even be used in viscoplastic media). The temperature sensor ensures precise, fast temperature compensation, and therefore accurate pH measurement
The pH probe is maintenance-free, leak-proof and insensitive to dirt thanks to the gel electrolyte in the probe
The dual wall diaphragm of the pH probe guarantees quick, reliable pH measurement
Simultaneous display of pH value and temperature on the clear display
Automatic final value recognition (auto hold): the reading is automatically held once it is stable

With the included accessories, you are ideally equipped for measuring pH:

TopSafe protective case: this is dishwasher-safe, hygienic and protects the measuring instrument from dirt, water and impact. Safely stored in the protective case, the pH measuring instrument is waterproof in accordance with protection class IP 68
Storage cap with gel: the storage cap, which is filled with gel electrolyte and attached to the pH probe, is used to store the probe between measurements
Belt/wall bracket: used for storing the measuring instrument on the wall or on a belt

As optional accessories, we also recommend the calibration dosing bottles, which are used for calibrating the probe. Alternatively, you can order the testo 206-pH1 starter set, which includes calibration dosing bottles.”

  • Ideally suited to applications in liquid and semi-solid media (e.g. in the food sector)
  • Built-in temperature sensor
  • Maintenance-free gel electrolyte
  • Robust, waterproof and dishwasher-safe protective cover (TopSafe, protection class IP68)
  • Automatic final value recognition (Auto-hold)
  • Two-line display
  • 1, 2, or 3-point calibration possible
Delivery Scope

testo 206 pH measuring instrument with BNC interface, incl. TopSafe and belt/wall bracket, storage cap with gel (testo 206-pH1,pH2), probe head for liquids (with testo 209-pH1), probe head for viscous media (with testo 209-pH2).


Download DataSheet Instruction Manual

Application Image

Technical Details

pH – Electrode
Measuring range 0 to 14 pH
Accuracy ±0.02 pH
Resolution 0.01 pH

General technical data
Dimensions 197 x 33 x 20 mm (LxWxH), 110 x 33 x 20 mm (without probe and TopSafe)
Operating temperature 0 to +60 °C
Product-/housing material ABS
Protection class IP68
Product colour white
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