Hanna HI12300 Offers

This probe connects to the meter with a 3.5 mm connector. The 3.5 mm connector is proprietary to meters that use digital electrodes. Features a built-in microchip that stores sensor type, serial number, and calibration information. It also features a single ceramic junction and the spherical pH sensing portion is made with general purpose glass. The electrode has a rugged PEI (polyetherimide) body that has the chemical resistance of a glass body in an unbreakable plastic.

Built-in Microchip

The built-in microchip stores sensor type, serial number and calibration information including date, time, offset, slope, probe condition and buffers used. this information is automatically retrieved by edge® once the electrode is plugged in. The ability to transfer information allows for hot swapping of probes without having to recalibrate. All pH measurements are performed within the electrode and transferred digitally to the meter.

Spherical Glass Tip

This design allows for a wide area of contact with the sample. This allows for a faster electrode response with a higher degree of stability. Measuring conditions are optimal around ambient temperatures; the tip uses a glass formulation that has a resistance of approximately 100 megaohms.

Double Junction Reference

A double junction electrode has an internal compartment surrounding the reference wire. Silver ions are present in the electrolyte of the internal compartment, which houses the Ag/AgCl reference wire; the electrolyte outside this compartment is silver free. This design allows measurement in applications where silver ions in the sample are undesirable or silver precipitates on the junction are likely to form.

PEI Electrode Body

This electrode body is used for a wide range of applications and excels in field measurements due to its durability. The spherical glass tip has a shield around it, to minimize breakage due to accidental bumping or dropping of the electrode.

Built-in Temperature Sensor

A thermistor temperature sensor provides for a high accuracy temperature reading and should be as close as possible to the indicating pH electrode in order to compensate for the effect that temperature has on the membrane potential.