Calomel pHree electrodes for biological applications are a mercury-free alternative to calomel electrodes. Electrodes have a silver-ion trap that effectively acts as a third junction to prevent contamination of media and junction area of electrodes.

• Deliver comparable performance to calomel electrodes, while creating fewer precautions for handling and disposal
• Combination electrodes: Available refillable or sealed
• Reference electrode: For use when indicating element must physically be separated from reference element to reduce noise, or when a different reference element is needed to precisely match the sample being measured