All-in-One electrodes feature a built-in temperature sensor for taking readings with Automatic Temperature Compensation (ATC). Choose a single junction electrode for field, clean water, and general purpose applications. Choose a double junction electrode for most applications, including dirty water, heavy metals and organics applications

Each electrode is 12 mm in diameter with a 3 ft cable (except submersible electrode, which is 25 mm in diameter with a 10 ft cable).