Horiba pH Half-Cell & Reference Electrode activated carbon Each kit installs a semi-permanent

Each kit installs a semi-permanent sampling point that sits flush with the top of the slab so it won't interfere with daily use of the space

24 Total Algae-Phycocyanin Sensor (Fresh Water) 626210 $3

sharp cutting design also eases removal of hard or wet material

Non-latching gas and trouble alarms (sensor

known ionic strength

Horiba pH Half-Cell & Reference Electrode activated carbon Each kit installs a semi-permanentSeparate half cell and reference electrodes for HORIBA meters set up as two electrode systems. A combination electrode packages both halves into one body; a two electrode system keeps them apart, which lets you replace only the part that has failed and lets you choose a reference junction suited to a difficult sample. A pH measurement is a voltage between two half cells: the glass electrode responds to hydrogen ion activity, and the reference