เครื่องวัดค่าพีเอช PH-224

PH-224 Pen pH Meter

Product Description

•  Range : 0 to 20.0 mg/L x 0.1 mg/L.
•  Temperature : 0 to 50 oC, oC/oF.
• Automatic temperature compensation.
•  Separate DO probe easy for remoting operation.
• Polarographic type oxygen electrode,professional.
• Data hold, Record ( max., min. ).
• External calibration buttons.
• DC 1.5V battery ( UM-4, AAA ) x 4.