Solving Analytical and Process Measurement Problems In Western Canada with Innovative Instrumentation and Professional Service. WJF Instrumentation specializes in water quality instrumentation (residual chlorine, turbidity, pH, conductivity, chlorine, dissolved oxygen, etc.), and we also offer high quality air quality analyzers, gas detection, flow meters, level and pressure instrumentation, chemical injection pumps, wastewater samplers, dewpoint transmitters, process valves, and much more.