HYDROS TDS Sensor for RODI

The HYDROS Dual Inline TDS Sensor monitors your RO/DI unit's water quality in real time, flagging a spent membrane or exhausted DI resin before it lets dissolved solids through to your mixing station.

• Measurement range: 0–999ppm, 1ppm resolution, ±2% accuracy
• Two titanium inline sensors; 1/4in push-connect fittings
• 24in sensor cable, 13ft magnet-mount display cable
• Plugs into any HYDROS Sense Port — no additional power source needed

Why this matters: RO/DI membranes and resin cartridges fail gradually, not all at once — a TDS creep from 0ppm up toward triple digits is the earliest warning that your top-off or mixing water isn't as pure as you think.

Compatible with: any HYDROS controller with an available Sense Port.

At Marine Concept Supply, all sales are final. Due to the sensitive nature of live animals and aquatic products, we do not accept returns or exchanges under any circumstances. Please review your order carefully before completing your purchase. No Cancellations.

If you have any questions or concerns about your order, please contact us at shop@marineconceptsupply.com and we’ll do our best to assist you.

We Ship UPS and will send tracking as soon as the item ships. 

Return shipping for any approved warranties are not covered and will be subtracted from the approved credit total.

Restock Fees apply to some products, due to their size or a manufacturer policy.Each product with a restock charge is marked online, in the description.

Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right