CCTVPLANNER.IO · OUTDOOR SIREN · ELDES
ELDES EWS4
Wireless outdoor siren — 3 km range, 5 yr battery, ISM868, wireable
SPECIFICATIONS · EWS4
Specifications
Acousticpiezo
Opticalled
Battery Backupbuilt-in
Figures as ELDES states them on the page linked above; nothing here is estimated.