Usage Tips:300cm Cable PH Probe. BNC connector, suitable for most pH meter and controller with BNC connector.Suitable for wide range of application: Aquariums, Hydroponics, Laboratory etc.Measurement range: 0.00-14.00 PHCaution: 1. Not suitable for testing in highly corrosive or viscous liquids, or for continuous testing in high temperature solutions. 2. Not suitable for testing low ionic concentration solutions (such as deionised or distilled water), strong alkaline solutions (pH Greater than 12) highly corrosive liquids.PH Replacement Probe With BNC Interface 300cm Cable:Our pH electrodes are designed for pH measurements in general water such as drinking water, aquariums, fish tanks, swimming pools, hydroponics, irrigation water, scientific research, environmental monitoring, laboratories, spas, other wastewater applications for water testing and industrial water. The standard BNC connector is compatible with any pH meter that uses a BNC connector. Measuring range: 0-14pH, 300cm cable, also features automatic temperature compensation (0-50°C), which helps you to get fast and stable pH readings, as well as the ability to perform a variety of pH tests.Ph Probe Diameter Size: 12mmZero-point:7 +- 0.5PHAlkali Error:0.2PHTheoretical Percentage Slope: greater than equal 98.5%Internal Resistance: less than equal 250MΩResponse Time: less than equal 1minOperating Temperature:0-60℃Terminal Blocks:BNC plugCable length:Approx. 70cmPlease check as much as possible to make sure the item is what you need.Tips:The product may be updated constantly,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use.Colour:As ShownMaterial:PCPackage Contents:1 * ph-201 Electrode1 * ph power buffer 4.011 * ph power buffer 6.861 * ph power buffer 7.001