
TDS Testing Pen
Accurately measure Total Dissolved Solids in your water with the bigboi TDS Testing Pen—ideal for monitoring filter performance and water purity.
Accurately measure Total Dissolved Solids in your water with the bigboi TDS Testing Pen—ideal for monitoring filter performance and water purity.
Description
Accurately measure Total Dissolved Solids in your water with the bigboi TDS Testing Pen—ideal for monitoring filter performance and water purity.












