GHM range portable devices for measuring pH / ORP, conductivity, pressure, temperature
Conductivity measurement, up to 100.0 mS / cm (graphite cell), or 100.0 µs / cm (stainless steel cell)
Conductivity measurement, without probe, analog output and data logger (GMH 5450) stainless steel)
Portable multi-function water analysis device, pH / redox + conductivity / salinity - pH / Redox + dissolved oxygen
Waterproof device for measuring dissolved oxygen in water, with datalogger (GMH5650)