Laboratory research & quality control testing

01 mS/cm EC Accuracy @25°C/77°F ±2% F

Filter Lifespan: Varies by usage — replacement filters sold separately

Households on fluoridated municipal water supplies

GroLine 5000 uS/cm Conductivity Standard Sachets, 20 mL (10 -Packs) NIST traceable conductivity standard Laboratory research & quality controlHI70039 10 packs 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