Education pH Benchtop Meter with Built-In Magnetic Stirrer


The HI208 is a basic, affordable pH benchtop meter that features a built-in magnetic stirrer and automatic calibration to 1 or 2 points with a choice of two sets of preprogrammed buffers. All readings are automatically compensated for temperature variations from the supplied HI1291D two-in-one pH and temperature sensor. The meter has an easy-to-read LCD that displays pH and temperature simultaneously. With features such as a built-in beaker and electrode holder, compact design, and the ability to switch to battery power, the HI208 is a meter designed for a busy classroom environment or can be taken outside the classroom for field studies.

•  Automatic Temperature Compensation (ATC)
•  Built-in Magnetic Stirrer
•  Two-Point Calibration

The HI208 is a basic affordable pH benchtop meter ideal for educational purposes. Operation is simplified with automatic pH calibration and automatic temperature compensation. This meter also features a built-in 500 rpm magnetic stirrer, extended pH range, dual-level LCD with icons for stability and buffer recognition, and temperature display in either Celsius or Fahrenheit. The compact design of the HI208, makes it ideal for educational use by reducing clutter and utilizing a minimal amount of space on the desktop. The option to switch to battery power also allows the meter to be taken outside the classroom for field studies.

Features at-a-glance :

Built-in Stir Bar
•  Integrated 500 rpm magnetic stirrer.

  HI1291D pH Electrode
•  The HI208 is supplied with the HI1291D PEI body, single junction, refillable pH electrode with an internal temperature sensor and DIN connector.

  One or Two-Point Calibration
•  Automatic calibration can be performed at 1 or 2 points with a choice of two sets of preprogrammed buffers (pH 4.01, 7.01, 10.01 or 4.01, 6.86, 9.18)

  Simple User Interface
•  Operation is simple with limited features that only require the use of a couple of buttons and readings are easy to view on the dual-level display.

Stability Indicator
•  The HI208 features a stability indicator. A clock icon appears on the display when there is instability in the reading.
•  The clock icon disappears once the reading has stabilized. At that time a reading should be taken or stored.

Temperature Compensation
•  The HI208 offers automatic temperature compensation of pH measurements over a wide range from -5.0 to 105.0°C.


 pH Range                                   : -2.00 to 16.00 pH
 pH Resolution                            : 0.01 pH
 pH Accuracy (@25ºC/77ºF)         : ±0.02 pH
 pH Calibration                            : automatic, one or two point with two sets of memorized buffer values (pH 4.01, 7.01, 10.01 or 4.01, 6.86, 9.18)
 pH Temperature Compensation  : automatic from -5.0 to 105.0°C (23.0 to 221.0°F)

  SPECIFICATIONS – Temperature

 Temperature Range                           : -5.0 to 105.0°C / 23.0 to 221.0°F
 Temperature Accuracy (@25ºC/77ºF) : ±0.5°C (up to 60°C); ±1.0°C (outside) / ±1°F (up to 140°F); ±2.0°F (outside)
 Temperature Resolution                    : 0.1°C / 0.1°F


 pH Electrode              : HI1291D PEI body pH electrode with internal temperature sensor, DIN connector and 1 m (3.3’) cable (included)
 Environment              : 0 to 50°C (32 to 122°F), RH max 95%
 Battery Type/Life        : 9V / approximately 200 hours of continuous use (without stirrer)
 Power Supply            : 12 VDC adapter (included)
 Dimensions                : 192 x 104 x 134 mm (7.6 x 4.5 x x 5.3”)
 Weight                       : 420 g (14.8 oz.)
 Ordering Information : HI208-01 (115V), HI208-02 (230V), supplied with HI1291D pH electrode, HI740035 pH electrode holder and plastic beaker, rubber O-ring,

magnetic stir bar, HI70004 pH 4.01 buffer solution sachet, HI70007 pH 7.01 buffer solution sachet,12 VDC adapter, battery and instructions.

 Notes                         : * temperature limits will be reduced to actual probe/sensor limits
** with temperature compensation function disabled

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To make your order, please contact us at  info@polyscientific.com.my or call us at +6 06 3350 690

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