Hanna Instruments HI981033 Wine pH Tester - Professional Portable pH Meter for Winemaking ultraviolet purification A mature biological filter should

A mature biological filter should be able to keep nitrite levels low

The PRO+ pH meter comes with the Milwaukee SE220 pH probe

Manufacturer: Milwaukee Instruments

8 oz — built for field and greenhouse use

Colorimetric method — nitrate reacts with reagent to produce a pink/violet tint

Hanna Instruments HI981033 Wine pH Tester - Professional Portable pH Meter for Winemaking ultraviolet purification A mature biological filter shouldProfessional Wine pH Testing for Vineyards & Cellars The Hanna Instruments HI981033 Wine pH Tester delivers laboratory grade accuracy in a portable, waterproof design built for winemaking professionals. Measure pH levels precisely throughout fermentation and aging to ensure optimal wine quality and stability. Key Features Automatic Temperature Compensation (ATC) Ensures accurate readings across varying cellar temperatures Waterproof & Portable IP67