GroLine pH 4.01 Buffer Sachets, 20 mL (25 pcs.) 67016 Accuracy @ 25°C / 77°F

Accuracy @ 25°C / 77°F

Always check the expiration date and lot number before use to ensure reagent integrity and measurement accuracy

Fundamental for gently rinsing the electrode between like samples or calibration solutions as well as rinsing off salt deposit buildup

and press READ

IP67 Waterproof: Fully submersible

GroLine pH 4.01 Buffer Sachets, 20 mL (25 pcs.) 67016 Accuracy @ 25°C / 77°FHI70004G is a high quality pH 4. 01 calibration buffer 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!