A set of 3 SUPER Stay-Alives with 3-wire connections to the decoder. Totally Plug and Play with Zen decoders.
DCC Concepts DCD-SA3-MD.1 Zen 3-Wire Medium Stay Alive for Zen Decoders
DCC Concepts DCD-SA3-SM.1 Zen 3-Wire Small Stay Alive for Zen Decoders
DCC Concepts DCD-SA3-MD.1 Zen 3 Wire Medium Stay Alive for Zen Black/Blue Decode
DCC Concepts DCD-SA3-SS.1 Zen 3 Wire Super High-Power Stay Alive for Zen Black/B
DCC Concepts DCD-ZN8H Zen Nano 8 Pin Wired 2 Function DCC Decoder Blue