Brix Refractometer 0-32% Sugar Tester, Juice & Honey Meter WiFi Sprinkler Controller safe for continuous soil insertion

safe for continuous soil insertion Power DC 5V via USB (phone or USB power source)

and improves overall plant vigor

If you want pH and light too

Does it need batteries

Brix Refractometer 0-32% Sugar Tester, Juice & Honey Meter WiFi Sprinkler Controller safe for continuous soil insertionUnlock accurate sweetness measurement anytime with this easy to use Brix refractometer. Key Features: Wide Measurement Range (032%) Perfect for testing juices, honey, wine, beer, soda, and other beverages. Automatic Temperature Compensation (ATC) Ensures reliable readings at varying room temperatures without manual correction. Clear & Precise Scale High definition prism and bright Brix scale deliver sharp, easy to read results in seconds. Durable &