The AutoAqua Digital Dual Inline TDS Titanium S2 is a compact and user-friendly digital meter designed to accurately measure the Total Dissolved Solids (TDS) in your aquarium water. This essential device helps ensure the purity of water produced by your reverse osmosis or reverse osmosis/deionization (RO/DI) system, which is crucial for maintaining a healthy saltwater environment.

Featuring two durable titanium probes, the Titanium S2 offers excellent corrosion protection and allows for simultaneous monitoring of both inlet and outlet water quality. Its large, bright screen ensures readings are easy to see, and a single push of a button provides instant, accurate TDS levels with a precision of +/- 2%. The magnetically coupled controller allows for convenient attachment and removal from metal frames, making it exceptionally versatile.

This monitor is ideal for saltwater hobbyists who rely on RO/DI water for their aquariums. By providing precise TDS readings, it enables users to determine exactly when to replace their carbon block, DI resin, or TFC membrane cartridges, preventing both premature disposal and the use of impure water. It simplifies the vital task of maintaining optimal water quality for your reef tank.