Reed 8689 Digital pH Pens

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This 8689 Digital PH Pen is one of the most popular types of PH Meters manufactured by Reed that offer an adequate pH Range: from 0.00 to 14.00 pH. Comes with great features such dual display of temperature and pH or automatic temperature compensation. With its one touch calibration for up to 3 points Reed 8689 assures that readings are corrected for temperature offsets.

REED 8689 Features

  • Dual displays of temperature and pH
  • °F or °C temperature measurement
  • Automatic temperature compensation assures that readings are corrected for temperature offsets
  • One touch calibration for up to 3 points
  • Calibration values are adjustable
  • Data hold
  • Electrode status indication
  • Replaceable pH electrode module
  • Waterproof housing (IP65)
  • Low battery indicator
  • Auto power off after 20 minutes of inactivity
  • Protective sensor cap keeps sensor moistened

Authorised Australian Distributor

1 Year Warranty

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SKU: Reed 8689 Category: Tags: ,

How to use Reed 8689 Digital PH Pen:

pH measurements
To prevent delayed readings or to make the electrode wet if the pH electrode dries out, soak the electrode in water for at least 30 min before using. Remove the probe cover from meter and rotate the transparent cap to expose the electrode .Dip the electrode into the test solution. Press the Power button to power on the meter. To confirm that the meter is in measurement mode, the LCD screen will flash “pH” symbol. The digital pH pen will start measuring and the LCD will then display the measured pH and temperature. “pH” stop flashing when the reading is stable.

Data Hold
During the pH measurements you can freeze the current reading by pressing the “HOLD” button. “HLD” will appear on the LCD screen. Press the “HOLD” button again to exit Hold Mode.

REED 8689 Specifications

  • pH Range: 0.00 to 14.00 pH
  • Resolution: 0.01 pH
  • Accuracy: ±0.05 pH
  • Temp. Range: 0 to 60.0°C
  • Resolution: 0.1°C
  • Accuracy: ±0.5°C

REED General Specifications

  • Power Supply: 4 LR44 button cell batteries
  • Dimensions: 176 x 39 x 39mm
  • Weight: 110g

Dip the electrode into the test solution. Press the Power button to power on the meter

The LCD screen will flash “pH” when the meter is in measurement mode. The LCD will then display the measured pH and temperature. “pH” stop flashing when the reading is stable. Once finished taking measurements, press the SET button, clean the electrode, put the transparent electrode cap and meter cover back on

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