Fit to the device models:ADEMCO 300-03865, 300-03866, 55026089, 781410403291, C8-B33, K5109, L3000 LYNX Plus, LYNX BACK UP WALYNX-RCHB-SC, MS104, WALYNX-RCHB-SC, Walynx-RCHB-SC K5109, WALYNX-RCHB-SC KS109.
This battery is ideal for powering ADEMCO 55026089 devices.