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New Products / Instrumentation

‘Calomel Free’ pH Sensor Electrodes

July 10, 2012
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New “Calomel Free” pH and Reference Electrodes from Sensorex offer the high performance levels of calomel electrodes without the hazardous mercury associated with the design. The mercury-free electrodes are available in a glass body or in virtually unbreakable, chemically resistant thermoplastic. The “Calomel Free” design features an Ag/AgCl-based double junction reference with a unique silver ion trap that prevents contamination with the silver-sensitive sample. The reference output is adjusted to deliver the same output as Calomel electrodes using a silver chloride reference. Versatile Calomel Free Electrodes are available in a convenient combination model featuring a pH measuring cell and reference cell in a single body, with separate reference half cells also available. They are available in both sealed and refillable reference styles. Both sealed and refillable styles are available. Gel-filled sealed references are maintenance free, while refillable designs extend electrode life with a refillable reference electrolyte.

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