1Perfect Fit: The electrode specially designed for the use of a pH tester can help you easily obtain the pH value and is convenient to use. 2Easy to Carry: Using sophisticated production technology, the PH electrode probe is small in size, easy to carry, and can be carried around. 3BNC Connector: It uses BNC connector and is used as a replacement electrode for the pH meter. It is compatible with any pH meter that uses BNC connector. 4Excellent Performance: Professional manufacturing, superb craftsman and high accuracy help provide the best performance. 5Wide Applications: Wide range of applications, this PH electrode probe is suitable for aquariums, hydroponic plant pools, pools, and spas. Item Type: PH Electrode Probe Material: Plastic, Glass Product Length: 16.8cm Connector: BNC Connector Application Scope: Aquarium, Hydroponic Plant Pond, Hydrotherapy Ph Meter Replacement Electrode Weight: Approx. 93g / 3.3oz 1 xPHElectrodeProbe