Mastertronic Essential

Mastertronic Essential – All-in-One Reef Tank Water Tester for PO4, NO3, Ca, Mg & dKH

The Mastertronic Essential is the ultimate reef aquarium water testing system, designed to measure phosphate (PO4), nitrate (NO3), calcium (Ca), magnesium (Mg), and alkalinity (dKH) with lab-grade precision. This all-in-one automated tester eliminates the need for multiple devices, saving space, maintenance time, and costs. Integrated with the Focustronic AIO App, it provides real-time water parameter tracking, automated testing schedules, and smart alerts to maintain optimal reef tank conditions.

Featuring high-precision stepper pumps, a robotic arm actuator, and a leak detector, the Mastertronic Essential ensures consistent, accurate results while preventing spills. Its exclusive OLI (Organic Level Index) testing detects water yellowness, signaling when carbon changes or water maintenance is needed. Perfect for serious reefkeepers, this system delivers automated, reliable water testing for a thriving saltwater aquarium.

Key Features:

• All-in-One Testing – Measures PO4, NO3, Ca, Mg, and dKH in one compact device.

• Real-Time Data & Trends – Live water parameter tracking via Focustronic AIO App.

• Automated Scheduled Testing – Set custom intervals for consistent monitoring.

• Exclusive OLI (Organic Level Index) – Detects organic buildup for proactive maintenance.

• High-Precision Components – Stepper pumps, robotic arm, and rotating carousel for lab-grade accuracy.

• Leak Detection & Protection – Built-in safety sensors prevent spills and damage.

• Space-Saving Design – Replaces multiple testers—one device does it all.

• Smart Integration – Compatible with Dosetronic, Powertronic & Solartronic for automated control.

• Reef Tank Optimization – Ensures stable water chemistry for corals, fish, and invertebrates.