The Grainger Graphite Conductivity Sensor is a sensor used to measure the electrical conductivity in liquids. It has a 316 stainless steel body, graphite electrodes, and a 3/4" NPT process connection. The sensor has a max pressure rating of 3000 psi at 100°F and a max temperature rating of 750°F. It has a cell constant of 0.1 cm−1. The sensor can be used for applications such as boiler water level control, cooling tower conductivity control, reverse osmosis system monitoring, and water purification monitoring. It requires a compatible conductivity transmitter to provide power and convert the signal.