Audible and visual signals for fire & industrial applications range from panel mount indicators through to heavy duty devices designed to withstand the harshest of environments. Approvals such as GOST-R, VdS, GL, UL and cULs enable E2S products to be globally specified and many sounders and beacons are CPR compliant, EN54-3 & EN54-23 tested, for fire alarm applications. Voice & tone notifications are possible with the Appello sounders.