These electrodes are made with low impedance, low sodium ion error pH sensitive glass, stable Ag/AgCl internal leads and low offset filling solutions. All provide fast response, full pH range, and stable performance required for the most exacting measurements. They have a speed of response of 95% in less than 1 second. Cabling is made of low noise coaxial.  Complete with 30" cable length with BNC or US Standard connectors (half cell electrodes have a US Standard ferrule, while the reference electrodes have only the pin.).  Supplied in a soaker storage bottle to ensure they are instantly ready-for-use. Other connectors and cable lengths available, please call for details. Choose the electrode type and connection below that best fits your applications. The best selling and most commonly used electrode for general purpose applications is the 124141-5.  Electrode filling solution: 3.5M KCl gel saturated with AgCl, solution saturated with AgCl,