HI70460 Total Chlorine Indicator solution for PCA series

Blackstone BL983317-1 Mini Conductivity Controller by 10.00 mS / cm, 115/230V. Dosing Relay - closes the contact when measured value

Blackstone BL983319-1 TDS (total dissolved solids) mini controller, 0 to 1999 mg / L, 115/230V. Water treatment, heating and air conditioning systems, cooling towers, surface technology, light industrial processes

Blackstone BL983320-1 Mini Conductivity Controller, 0 to 199.9 uS / cm, 115/230 V Water treatment, heating and air conditioning systems, cooling towers, surface technology, Simple industrial processes