K 800 DIN, Combined Potassium ion selective electrode, with 3.3 ft (1 m) cable,

Combined Potassium ion selective electrode, with 3.3 ft (1 m) cable, DIN plug, 0.04 to 39,000 mg/l, requires ELY/BR/503/K reference electrolyte, ionic strength adapter ISA/K, standard solution ES/K. Delivery contains electrolyte and exchange heads!