Features: Premium ORP electrode designs for accurate measurement of oxidation reduction potential in Liquid solution and water systems, featuring BNC connector compatibility with most ORP meter. Constructed with strong ABS material and pre filled with environmentally safe saturated solution, ensuring stable conductivity and harm frees operation for prolonged lab/field use. Essential tool for water quality technicians, Aquariums enthusiasts, hydroponic growers, and industrial wastewater treatments professional requiring precise ORP monitoring. Ideal for continuous ORP/ measurement in swimming pools, pond, aquaculture systems, manufacturing processes, and wastewater treatments applications. Multifunction solution for multiple water environment including laboratory research, marine ecosystems, spa maintenance, and drinking water sources analysis with reliable BNC connection. Specifications: Material: ABS Length: about 185mm/7.3inch Ranges: 0-1500mV Package Includes: 1xORP Electrode note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.