Optimized stabilization algorithms in Hach’s H-series meter platform eliminates operator guesswork and reduces inaccurate measurements. The PH30-GS electrode works specifically to deliver accurate results and the quickest response, even in challenging environments. The durable ISFET silicon chip sensor electrodes eliminate problems associated with fragile glass bulb sensors. Need to measure in both the lab and field? Hach offers efficiency with reliable, high-performance probes that easily move with you from the benchtop directly to the testing site. Engineered to withstand harsh use in the most difficult applications, the H-Series meters and probes give years of reliable service.