Confidently perform conductivity tests and measurements with Thermo Scientific™ Orion™ Accessories. Find an additional or replacement Glass Flow Cell for use with the Orion 2-Cell Ultra-pure conductivity probe. Use the Thermo Scientific Orion conductivity resistor calibration kit to verify the performance of Thermo Scientific™ Orion™ Versa Star Pro™ and Orion Star™ bench and portable conductivity meters. Each conductivity calibration kit includes six resistors that simulate nominal conductance values between 1 µS and 100 mS and have 8 pin MiniDIN connectors.