Discover now: BWT summer deals from € 49,-


The pH sensor (blue) measures the pH value and helps to estimate the balance of your pool water. Thanks to the "Twist & Lock system", the sensor can be easily replaced.

Your Pearl Water Manager has been calibrated at the factory as standard. After the first season, we recommend that you recalibrate the sensors every time you put your pool or whirlpool back into operation (or every 6 months if you do not winterise) or if you notice a deviation in the measurements.
Contents: 1x pH sensor, 1x pH calibration kit


 Erstklassige Produkte, großartiger Service

Bester Service im Onlineshop


The perfect gift for any occasion.

Order BWT gift vouchers fast and comfortably online now!
BWT customer service

Do you have any questions regarding your order?

If you have any questions, suggestions or requests concerning the BWT online shop or your order, please do not hesitate to contact us.
Subscription Service BWT

BWT subscription service

Thanks to BWT's convenient subscription service, your products are delivered directly to your home - automatically and on time.
Best Water Home smartphone app from BWT

BWT Best Water Home App

All in one - app, water consultant and the place to find numerous benefits.