& OOTD Features: Available to connect the BNC jack directly to the input terminal of the controller of the ORP or ORP meter or any ORP device with BNC input terminal. It gives you the flexibility to measure the solution in a container up to 300 cm from the instrument and precisely determines the redox voltage of the intended solution to be measured. A replaceable ORP electrode that provides instant ORP measurement, reliable and easy to use. When a new ORP electrode probe is connected to the electrode input terminal, calibrate it first with calibration solutions (buffer) before using the newly replaced ORP electrode. Suitable for measuring drinking, domestic and rainwater, aquariums, tanks, ponds, swimming pools, spas, etc. Specification:Material: Plastic + Metal Length: Electrode: 14cm / 5.51in; Cable: 3m/9.84ft Diameter: 1.2cm/0.47inMeasuring Range: -1999-1999mVRushability: 1mVDaccuracy: ± 0.1% F middot; S ± 1 digit Connection: BNC slot: random delivery (If you buy more than one, the colors you get will be the same or different.)Quantity: 1 PcNote: Please allow 0-1cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Included:1 x Redox Electrodes1 x Cable