USES: Suitable for various aquariums, hydroponics, laboratories, and other applications. Electrode caps used for composite electrode testing should be kept dry. Avoid cross-contamination between solutions during measurement to maintain accuracy. Material: Made of PC plastic, strong and durable, with a long service life. Compatible: Designed to fit BNC connectors on most pH meters and controllers. Function: Composed of a glass electrode and a silver/silver chloride reference electrode. A pH meter is an electronic device used to measure the pH value, which indicates the concentration or activity of hydrogen ions in an aqueous solution. Description: The electrode plug should be kept clean and dry. The external reference solution for the pH electrode probe is 3N KCl. Prevent cross-contamination between solutions during measurement to ensure accurate results. Avoid prolonged exposure to acidic fluoride solutions. Intended for use in liquid environments; special probes may be required for semi-solid materials. The complete pH probe consists of a specialized measuring sensor (glass electrode) connected to a meter for reading and displaying pH values. Features: - pH Electrode Probe - Color: Light blue - Material: PC plastic - Size: 14.5 x 2 x 2 cm / 5.71 x 0.79 x 0.79 inches - pH Test Range: 0.00–14.00 pH - Response Time: ≤ 1 minute - Working Temperature: 0–60°C - Cable Length: 70 cm / 27.56 inches Package Includes: 1 x pH Electrode Probe