·KL-8813 Portable pH and Temper
·KL-013 Portable pH/mV/Temperat
·KL-013M Portable pH/mV/Tempera
·KL-012 Portable pH meter
·KL-113 Portable pH/Temperature
·PH981033 PH Tester
·PH-06 Waterproof pH and Temper
·pH-2024 pH/Salinity /Temperatu
·KL-009(I) Pocket-size PH meter