Winland EAPRO-GTWY-BAT EnviroAlert Professional Gateway Battery Replacement Kit

The Winland EAPro-GTWY-BAT is a battery replacement kit sold as a service part for the EnviroAlert Professional Gateway system, letting installers replace depleted batteries in the gateway's wireless-sensor ecosystem without purchasing a new unit. (Spec-only listing: Winland's published documentation for the EAPro-GTWY gateway does not detail battery-backup operation, so this description is limited to the product's stated purpose as a battery kit rather than specific voltage or capacity claims.)