Bluelab pH 4.0 Calibration Solution Sachets – Box of 30 (18 ml Each) housing wrench * 1°Oe is roughly equal

* 1°Oe is roughly equal 0

It is not compatible with other Santevia models such as the Gravity Water System or the MINA Glass Water System (which uses a different cartridge)

accurate pH readings even in difficult sample matrices

Why Choose Aquamira SHIFT

Other HM Digital controllers and monitors requiring 1000 ppm NaCl calibration

Bluelab pH 4.0 Calibration Solution Sachets – Box of 30 (18 ml Each) housing wrench * 1°Oe is roughly equalAn easy way to keep your pH and EC probes or pens accurate and working at their best Features: Easy to open single use sachets of calibration and storage solutions Quick tear open sachets are suitably sized for on the go calibration and probe storage Contains 30x 18 ml 0. 6 fl. oz. sachets Bluelab Sachets Perfect for lab technicians, growers, and water quality professionals who need reliable, portable calibration solutions. Each sachet delivers