복합전극 "CAL. MEMO"

GST-5727C(시험관용)
GST-5728S(극세시험관용)
GST-5720C(유통용)

대응기종 : HM-25G/30G/50G/60G, IM-55G, WM-50EG,
HM-25R/30R, MM-60R, HM-7J/20J