No ceramic frit or fiber junction to clog Improved service life, reproducible results, easy maintenance Press down on cap to flush viscous solutions and small particles away from reference junction Saturated KCl electrolyte is suitable for biological, pharmaceutical and Tris applications Perfect for the most difficult applications: wastewater samples, Tris samples, foods, soils, sludges, slurries and other viscous samples Models with Ag/AgCl internal reference Have double junction to isolate sample from silver and precipitates Models with accupHast patented design Have sealed Ag/AgCl reference and special electrolyte to eliminate slow response when measuring samples at different temperatures in quick succession Both junction types Available in pH combination electrodes with or without built-in ATC probe