APPLICATIONS: Suitable for various aquariums, hydroponics, laboratories, etc. The electrode contacts used for testing composite electrodes should be kept dry. Avoid cross-contamination between solutions during measurement so as not to affect measurement accuracy. Material: Made of PC plastic, strong and durable, long service life. Compatible: Suitable for BNC connectors with most pH values and controllers. Function: It consists of a glass electrode and a silver chloride electrode. A pH meter is an electronic device used to measure pH. The pH value is the concentration of hydrogen ions in an aqueous solution or the activity of hydrogen ions in an aqueous solution. Description: The electrode contact should be kept clean and dry. The external reference solution for the pH electrode probe is 3NKCL solution. Avoid cross-contamination between solutions during the measurement process so as not to affect measurement accuracy. Avoid prolonged immersion in acidic fluoride solution. Work in liquids, although special probes are sometimes used to measure the pH of semi-solid materials. The pH meter consists of a special measuring probe (glass electrode) connected to the human body to measure and display pH values. Function: pH electrode probe Color: Light blue. Material: PC plastic. Size: 14.5x2x2 cm / 5.71x0.79x0.79 inches. PH test range: 0.00-14.00P Response time: Le; 1 min Working temperature: 0-60 Cable length: 70 cm / 27.56 inches 1 * pH electrode probe