PH Meter

Additional Information:

• pH Range-2.000 ~ 20.000 pH
• pH Accuracy± 0.002 pH
• pH Resolution -0.001, 0.01, 0.1pH (Selectable) 
• mV Range - ± 1999.9 mV
• mV Accuracy - ± 0.2mV
• mV Resolution - 0.1mV, 1 mV (Selectable)
• Calibration - Upto 5 Points

pH Buffer Solutions

• USA (pH 1.68, 4.01, 7.00, 10.01,12.45)
• NIST (pH 1.68, 4.01,6.86,9.18,12.45)
• DIN (pH 1.09, 4.65,6.79,9.23,12.7)

(or User defined)

• Calibration Due Reminder - 1 to 30 days (or not used)
• Temperature Range - 0 ~ 105 oC, 32 ~ 221 oF
• Temperature Accuracy - ±0.5 oC, ±0.9 oF
• Temperature Compensation  - 0 ~ 100 oC, 32 ~ 212 oF, Automatic or manual
• Auto Power OFF
• Manual or Automatic. 10,20,30 Minutes after Last key press (Selectable)
• Memory- 500 Reading with Date & Time
• Power Supply- DC 5V Adapters, Using AC 220V/50Hz
• Dimensions (L X W X H) mm- 210 X 188 X 60
• Weight- 1.2 kg

A pH electrode is a sensor that measures the potential of hydrogen ions (

) in a solution. It's made of a special glass that's sensitive to hydrogen ion concentration.

A pH electrode is made of two electrodes: a reference electrode and an indicator electrode.

• The reference electrode is kept at a constant potential by a salt bridge. 
   
• The indicator electrode is sealed with hydrogen-impermeable glass, except at the tip.
• When the electrode is dipped into a solution, hydrogen ions accumulate around the bulb and replace the metal ion from the bulb.