RTS300R47K3.81A remote temperature sensor applies to EPEVER Tracer-AN（50-100A）, Tracer-AN（10-40A）, XTRA, Triron, VS-BN, VS-AU, LS-B, DuoRacer, MSC-N, Tracer-BN, UPower, UPower-Hi, and GoMate, etc. with cable length 3m.