S420 series probes for use in industrial water applications are designed as a direct replacement for existing Strantrol® pH and ORP probes. Probes are constructed of CPVC for improved chemical resistance. Probes contain a higher volume of proprietary polymer sensor gel for longer service life. Product delivers accurate measurement over a range of 0-14 pH or -1000 to 1000mV for ORP. Probes are suited for applications with a temperature range of 0-50 °C and a pressure maximum of 100psig. The threaded ½” NPT connection enables in-line installation or use with existing Strantrol® flow cells without modification. Signal shielding reduces noise for more accurate communication with control systems. Both the pH and ORP probes are available with the option of 30-inch or 10-foot cable lengths for quick integration into existing systems.