Locates Faulted Cable Sections Quickly Locate cable failures within and between cable vaults using easy-to-install SEL-8315 Fault Indicators.Operates in Harsh Environments The SEL-8315 Fault Indicators are submersible in up to 15 feet of water and can operate in extreme temperatures.Communicates Using Own Power No external power source is required.Works With Existing RadioRANGER Installations The SEL-8315 plugs into the SEL-8300 RadioRANGER Wireless Interface and reports to the interface any out-of-phase condition. You can then use the SEL-8310 RadioRANGER Remote Fault Reader to remotely read the status of the fault indicator.Some configurations, such as those with an LED or timed-reset feature, may contain a battery. For configurations with a battery, please see the lithium metal battery warning.