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Hanna HI-8424 Portable PH/mV Meter

Detail Hanna Portable PH/mV Meter – HI8424

The HI-8424 is an economical portable pH/mV meter. This meter uses a BNC for the pH electrode input allowing for a wide selection of pH and ORP electrodes to be used. A separate temeperature probe is supplied to provide temperature compensated pH measurement. The  HI-8424 is very basic in operation with automatic calibration to one or two points to any of the three programmed buffer values (pH and 10.01). The simplicity in operation and the economical price point has made the HI-8424 one of the most popular meters available in the market.


  • Waterproof – Compact, heavy duty casing taht protected againts any ingress of water taht would damage the electronics
  • Automatic calibration – calibration to one of two points to any of the three programmed buffer values (pH and 10.01)
  • Automatic Temperature Compensation – Separate temperature probe is supplied to provide temperature compensated measurements
  • High resolution/Accuracy mV Range – The  HI-8424 automaticaaly switches resolution from 1 mV to 0.1 mV when ORP readings are between -699.9 to 699.9 mV. The accuracy within this range is ±0.2 mV
  • Automatic shut off – The automatic shut off feature will turn the meter off offer 20 minutes to conserve battery life
  • Low battery Indicator – A low battery indicator will be displayed when the battery life is almost exhausted (5% remaining) alerting the user a new battery will be needed in the near future.


pH Range
-2.00 to 16.00 pH

pH Resolution
0.01 pH

pH Accuracy
±0.01 pH

pH Calibration
automatic, at one or two points with three standard buffers (4.01, 7.01,10.01)

mV Range
±699.9 mV; ±1999 mV

mV Resolution
0.1 mV; 1 mV

mV Accuracy
±0.2 mV; ±1 mV

Temperature Range
-20.0 to 120.0°C / -4.0 to 248.0°F

Temperature Resolution
0.1°C / 0.1°F

Temperature Accuracy (@ 25°C/77°F)
±0.4°C; ±0.8°F

Temperature Compensation
automatic from -20.0 to 120.0ºC (-4.0 to 248.0ºF) or manual without temperature probe connected

pH Electrode
HI1230B PEI body pH probe with BNC connector and 1 m (3.3’) cable (included)

Temperature Probe
HI7662 stainless steel temperature probe with 1 m (3.3’) cable (included)

Slope Calibration
From 75 to 110% / ±1 pH

Input Impedance
10¹² Ohms

Battery Type / Life
9V / approximately 150 hours of continuous use; auto-off after 20 minutes of non-use (can be disabled)

0 to 50°C (32 to 122°F); RH max 100%

164 x 76 x 45 mm (6.5 x 3.0 x 1.8”)

180 g (6.3oz.

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