The Hanna HI 8424 is one of our best selling portable pH meters.

Featuring a water resistant case, this hand-held meter measures pH, mV and temperature and features automatic buffer recognition, automatic pH calibration procedure and automatic temperature compensation.

Supplied complete with a high quality laboratory grade pH electrode and a stainless steel temperature sensor, the HI 8424 is ready to use straight from the box.

The mV measurements switch automatically from 0.1 to 1 mV resolution when readings reach ±699.9 mV. Temperature effects are automatically or manually compensated for, from 0 to 100°C.

The meter has 3 memorised buffer values (pH 4.01, 7.01, 10.01), and automatic buffer recognition to avoid errors during calibration. When powered on, the percentage of remaining battery life is indicated on the display panel.

The user can enable or disable the Auto-off feature, the acoustic signal, the back-lit display and choose from either °C or °F temperature measurements. In addition, the HI 8424 indicates buffer values used for the most recent calibration and thanks to the HOLD function, the reading can be frozen on the display to be logged manually.

An optional rubber holster is avaliable for the HI 8424 which is recommended if the meter is to be used outside or in industrial applications.

The HI 8424N is supplied complete with HI 1230B pH electrode, HI 7669AW temperature probe, calibration and cleaning solution, battery, protective case and instructions.