Hanna HI1294D Offers

The design consideration for the HI1294D is ideal for pH measurements in soils and hydroponics growing media including rockwool, coconut cour, perlite and other soiless substrates. The HI1294D can only be used with Hanna's HI9814 Groline portable pH/EC/TDS meter.

This electrode has a triple ceramic junction in the outer reference cell and the conic pH sensing tip is made with low temperature glass. There is an integrated amplifier and built-in temperature sensor for automatically temperature compensated pH readings.

Low Temperature Glass Formulation

The glass tip uses a LT glass formulation with a lower resistance of approximately 50 megaohms compared to general purpose (GP) with a resistance of about 100 megaohms. As the temperature of the glass decreases when in a sample at low temperature, the resistance of the LT glass will increase approaching that of GP glass at ambient temperatures.

Conic Bulb

The conical shaped tip design allows for penetration into solids, semi solids and emulsions. Designed for the direct measurement of pH in soils and soil slurries.

Glass Body

The glass of the HI1294D is resistant to many harsh chemicals and is easily cleaned. The glass body also allow for a fast transfer of heat to the internal reference electrolyte.

Triple Ceramic Junction

The triple junction allows for a higher flow rate of electrolyte from the reference cell into the measurement sample.

Refillable

The HI1294D is a refillable probe. The fill solution is the HI7071 3.5M KCl + AgCl. If using a refillable pH electrode, the fill cap should be removed prior to calibration and measurement.

DIN Connector

The HI1294D has a DIN connector that can only be used with the HI9814 Groline portable pH/t/EC/TDS meter.