Description
Automate routine testing for your reef aquarium with the Focustronic Mastertronic Essential. It measures alkalinity (dKH), calcium, magnesium, nitrate, phosphate, and OLI (Organic Level Index), with results and test scheduling managed through Focustronic’s Wi-Fi All-in-One app for iOS and Android.
The standalone unit uses a colorimetric photosensor and high-precision pumps. It can connect over local Wi-Fi with compatible Focustronic equipment, including Alkatronic, Dosetronic, Powertronic, and Solartronic.
- Parameters: dKH, calcium, magnesium, nitrate, phosphate, and OLI
- Approximate test time: alkalinity 8 min; calcium 12 min; magnesium 12 min; phosphate 20 min; nitrate 30 min
- Dimensions: 31.5 × 22.5 × 35 cm (12.4 × 8.9 × 13.8 in)
- Compatible with select third-party test kits and Focustronic reagents
Reagents/test kits are sold separately. Includes the Mastertronic Essential automated testing device.

