Pentrode uses a silicon based ion selective field effect transistor, coated with a chemically sensitive material, which detects a potential change at its surface
The Orion pHuture MMS pentrode, said to be the world's first pH, ORP, conductivity and temperature probe in a standard 12mm electrode body, was selected as Year 2000 R and D top 100 award winner.
It uses a silicon based ion selective field effect transistor, coated with a chemically sensitive material, which detects a potential change at its surface.
It gives a fast response and is very durable, making it ideal for measuring pH in solutions and on moist surfaces.
The sure-flow design is incorporated into some models to provide a non-clogging junction, keeping the sensor clean in dirty and viscous samples.