The AquaFX Dual Inline TDS Meter Backlit is an essential and user-friendly tool for maintaining pristine water quality in your saltwater reef aquarium. This advanced device allows you to precisely monitor the efficiency and performance of your Reverse Osmosis/Deionization (RO/DI) system by providing real-time Total Dissolved Solids (TDS) readings. It helps ensure your RO membrane is functioning optimally and extends the life of your DI resin, preventing the introduction of unwanted contaminants into your valuable reef tank.

Featuring dual probes, this meter displays TDS levels clearly on its front digital face, powered by efficient and accurate advanced microprocessor technology. For convenience and battery conservation, it includes an automatic shut-off function that activates after 10 minutes of idle time. Each unit is factory calibrated with a 342 ppm NaCl solution for immediate accuracy, with the option for re-calibration using a mini-screwdriver on the back. Installation is straightforward with the included 1/4" Quick Connect "T" fittings.

This AquaFX TDS meter is ideal for any reef aquarist dedicated to achieving and maintaining the highest water purity for their aquarium inhabitants. By closely monitoring your RO/DI system, you can make informed decisions about filter changes, saving money on unnecessary replacements while ensuring consistent, high-quality source water. Its proven reliability and ease of use, having been utilized by AquaFX for nearly two decades, make it an indispensable investment for a thriving reef environment.