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.