Electonics International RS4-2S Remote Switch, 4 Channel, Switch EGT and CHTUpgrades any two channels to read Four Channels of EGT and CHT. STC'd, PMA'd.
Single engine use only, Twin engine applications additional cost.
Electronics International Remote SwitchesElectronics International has made it simple and affordable to upgrade any single channel temperature monitor. For instance, if you own an E-1 and would like to monitor every cylinder in a 4 cylinder aircraft, purchase an RS-4-1S. If you have an EC-1 and want to monitor EGT and CHT for all six cylinders of your aircraft, purchase an RS-6-2S. There are many options to upgrade existing systems, all of which include the necessary cables and probes to turn your single temperature instrument into a full engine monitor.