GroLine 1413 uS/cm Conductivity Standard Sachets, 20 mL (25 pcs.)

HI70031G is a high quality 1413 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!