Shop Auto Aqua aquarium auto top-up systems, automatic water change units and monitoring accessories at The Tech Den. Browse Smart ATO and Smart AWC models, Titanium inline TDS meters and accessories for aquarium water-maintenance and RO setups.

Smart ATO auto top-up systems

Compare Smart ATO Lite G2 266P, Duo 280 and Duo G2 286P listings, alongside Smart ATO Nano 270D and the Nano G2 hang-on-back model. The range also includes Smart ATO RO G2 for RO systems. Check each model's installation requirements and included components before selecting a unit.

Smart AWC automatic water change units

Explore the Smart AWC Unit & ATO and Smart AWC Duo G2 Unit & ATO. Compare individual specifications with your aquarium layout, available installation space and water-storage arrangement to choose an appropriate model.

TDS meters and aquarium accessories

• Titanium S1 and S2 inline TDS meters.
• Smart ASOV RO electronic auto shut-off valve.
• Auto Aqua Skimmer Sensor and Smart AC Switch (AU).
• Smart Stir for test kits and vials.

Choose equipment for your setup

Check model compatibility, mounting requirements, power connections and product instructions before purchasing. Compare aquarium top-up equipment separately from RO-specific accessories, and confirm the components needed for your installation. Contact The Tech Den for help comparing Auto Aqua models.