HI1296D is a titanium body, gel-filled, single reference junction pH electrode with a DIN connector. The sensing part of this electrode is made of general purpose glass. HI1296D also features a cloth junction, built-in temperature sensor and amplifier in a single probe design. This design consideration is ideal for measuring pH in municipal and industrial wastewater and various field applications. HI1296D is designed to be used with Hanna's HI991001 portable pH meter.

• Titanium alloy body
• Built-in temperature sensor
• Cloth junction

Hanna Instruments offers a wide variety of pH electrodes designed for many different applications. The type of glass used to sense pH, bulb shape, body material, junction type, reference type and electrolyte used are just some of the design considerations.

HI1296D uses general purpose (GP) glass, a spherical bulb, titanium body and a cloth junction with gel electrolyte.

General Purpose Glass Formulation

General purpose (GP) glass, as the name implies, is a standard glass formulation used for general use. A pH electrode with GP glass has a resistance of 100 megohms at 25°C and is suitable for measuring pH of samples at ambient temperature. HI1296D is suitable for samples from 0 to 80°C.

Spherical Bulb

The spherical bulb is general purpose. Other tip shapes include conical for penetration and flat tip for surface measurements.

Titanium Alloy Body

The titanium body enhances immunity to electrostatic and magnetic fields. It also has a strong resistance to corrosion, even in seawater. Our titanium electrode housing also serves as a matching pin. A matching pin is a differential measurement technique used to eliminate ground loops and common mode disturbances in the measurement system. In a system without a matching pin, currents in the sample can affect the reference half-cell voltage. The matching pin isolates these currents/magnetic fields from the reference electrode for safe, accurate pH measurement.

Cloth Junction

A cloth or fiber wick junction provides a greater surface area than a standard ceramic junction. This is useful when measuring the pH of liquid samples with high solids content.

DIN Connector

HI1296D uses a DIN connector. This type of connector is proprietary to the meter. Compatible meters include HI991001.