Digital water quality tester EZ-9908/686

🧪 Digital water quality tester EZ-9908/686

Stress-free water measurement with an accuracy of one tenth of a pH! This multifunctional tester helps you keep track of pH, EC (conductivity), TDS (total dissolved solids) and temperature of your nutrient mixture. Whether you're growing basil in the kitchen or a salad tower on the balcony, the right values ​​are the key to success.

✅ What it can do:

• pH meter (0.00–14.00) with an accuracy of ±0.01

• TDS measurement up to 9990 ppm – find out if you are overdoing it with fertilizer

• EC up to 19990 µS/cm – ideal for hydroponic pros

• Thermometer (°C/°F) with automatic temperature compensation (ATC)

• HOLD function, AUTO-OFF (handy if you forget to turn off)

📦 In the package:

• Tester EZ-9908/686

• 3 sachets of calibration powder (pH 4.01, 6.86, 9.18)

• 3× LR44 batteries

• Electrode protective cover

• Instructions in Czech

🛠 Control:

The ON/OFF , HOLD/TEMP and MODE/CAL buttons can be operated even by a non-technical person. Calibration is simple – just hold the button and wait for the beep. Suitable even for beginners.

⚠️ Safety:

The tester is waterproof (IP65), but it's not for diving - stick to nutrient solution. Calibration powder is not sugar in tea, and flashlights don't belong in the stove either.

🧽 Maintenance tips:

Rinse with distilled water, do not clean with a brush, and most importantly – protect the electrode like the apple of your eye.


Pdf user manual