Hydros Dual Inline TDS Meter The Hydros Dual Inline TDS Meter is a HYDROS Sense Port accessory for monitoring total dissolved solids in RO or RO/DI water systems. It uses two inline titanium sensors so aquarium users can track water quality at two points, such as before and after DI resin, directly through a compatible HYDROS Control device. HYDROS Dual Inline TDS Meter Overview This compact meter is built for aquarium owners who want better visibility into RO/DI system performance. By monitoring two TDS points, it can help show when membrane performance is changing, when DI resin is nearing exhaustion, or when product water quality is no longer where it should be. The meter plugs into a HYDROS Sense Port and does not require a separate power supply when used with a compatible HYDROS controller. Dual Inline TDS Monitoring Features Monitors TDS at two points in an RO or RO/DI system. Two titanium sensors provide corrosion-resistant inline water-quality readings. Connects directly to a HYDROS Sense Port and is powered by the HYDROS controller. Includes 1/4 inch push-connect fittings for straightforward RO tubing installation. Magnet-mount display allows simple placement on a controller board or nearby surface. Useful for tracking DI resin exhaustion, RO membrane performance, and product water quality. Compact design keeps the installation clean in aquarium water-production areas. Hydros Dual Inline TDS Meter Specifications Product type: HYDROS dual inline TDS sensor UPC: 4714041212334 Part number: HDRS-TDS Range: 0-999 ppm Resolution: 1 ppm Accuracy: +/- 2% Sensor cable length: 24 in Display cable length: 13 ft Display size: 2 x 0.6 in diameter x thickness Connection: HYDROS Sense Port Power: Powered by compatible HYDROS controller Application: RO and RO/DI water-quality monitoring TDS Meter Compatibility Notes The Hydros Dual Inline TDS Meter requires a compatible HYDROS Control device with an available Sense Port. The CR2032 battery model is listed for the display hardware but is not required when the meter is powered by the HYDROS controller. Install the sensors in the appropriate RO tubing locations for the water-quality points you want to monitor. Installing the HYDROS Dual Inline TDS Meter Cut the RO tubing at the desired monitoring points, install the inline sensors using the 1/4 inch push-connect fittings, mount the display where it can be viewed easily, and connect the meter to an available HYDROS Sense Port. After installation, confirm water flow direction and check readings under normal RO or RO/DI operation. What's Included 1 x Hydros Dual Inline TDS Meter 2 x Inline titanium TDS sensors 1/4 in push-connect fittings