This keeps your ability to produce cleaner

Managing conductivity helps growers pinpoint fertilizer and other needs

NSF/ANSI Standard 42 compliant

follow the procedure below

GroLine 5000 uS/cm Conductivity Standard Sachets, 20 mL (25 pcs.) Milwaukee MA9001 This keeps your ability toHI70039G is a high quality 5000 uS cm conductivity standard designed with hydroponics, aquaponics, and greenhouses in mind. Single use sachets are highly portable, with a small footprint and a lightweight design. They are the perfect accessory for your on the go testing, fitting easily into your pocket or carrying case. Supplied with Certificate of Analysis Single use sachets for convenience. Perfect for use with GroLine testers and portable meters!