·KL-PHS25C Bench pH/mV and Temp
·KL-PHS3C Bench ph/Temperature
·KL-016 Bench pH/mV/Temperature
·KL-016A Bench ph Meter
·KL-98 Lab. pH/ORP/Temperature
·KL-8813 Portable pH and Temper
·KL-013 Portable pH/mV/Temperat
·KL-013M Portable pH/mV/Tempera
·KL-012 Portable pH meter