SI Analytics® Premium Precise pH·mV·Temp·Meter Set, “Lab 855”, -2.0~20.0pH, ±2000mV, -5℃+105℃With LCD Display, Active AutoRead, 1 to 3 Points Calibration with Timer, 정밀 탁상용 pH·mV·ISE·Temp 미터 세트 (DH24CAT00002230)