Duetto ATO | Dual-Sensor ATO Aquarium Auto-Top-Off System | XP Aqua

With huge features jammed in a tiny package, the Duetto is the perfect ATO for your aquarium. XPAqua’s proprietary dual-optical sensor packs two precise level sensors in one incredibly small package. In addition to keeping your water level constant, the two sensors also work in concert with the intelligent QST programming to help prevent overfilling.

• World’s smallest dual-sensor ATO
• Two layers overfill protection
• Intelligent QST programming
• Secondary optical sensor
• Super precise water level control
• Super easy installation; plug-and-play
• No programming or adjustments required
• Works in complete darkness

All the installation parts are included and a magnetic coupling allows you to easily mount or adjust the dual-sensor. Installation takes just seconds so you can spend less time working on your aquarium and spend more time enjoying your aquarium.

Includes:

• controller,
• 2x optical sensors,
• power adapter,
• DC brushless pump capable of pumping to a height of ~6 feet and a maximum flow rate of ~74 gph and
• 6.5' of water tubing with tubing holder.