Process Control and Monitoring Instrumentation
Johnston Inc. is proud to represent the following manufacturers. Links to the manufacturer's sites are provided where available.
Test Kits, Hand Held Meters for pH and Other Parameters, Hanna Instruments Multi-parameter Water Quality Sondes
Process Analyzers for Dissolved Oxygen, TSS, pH and ORP
Reagentless Analyzers for: BOD, COD, TOC, DOC, UV-254, Nitrate, Nitrite, Ammonia, Chlorine, Fluoride, TSS, DO, Turbidity, Color, pH,
ORP, Conductivity, Temperature, Ozone, Hydrogen Sulfide and more. | www.s-can.us
Analyzers for and Phosphate and Total Phosphorous. Paperless Recorders
and Temperature Transmitter. | www.us.endress.com
Digital Displays, Totalizers and Controllers