ActiV Hi-Output 100dB(A) Wall Sounder, deep base · · · Certified to EN54-3 by the LPCB & VdS. · · Compatible with C-TEC’s CFP, FP, MFP and EP203 conventional fire alarm panels and virtually all other makes (testing on third-party panels is recommended before use) · · Designed to be wall mounted. Can be used in covered outdoor areas. · · 18 to 30V DC. · · 100dB(A). · · Alarm Current: At 30Vdc: 5.5mA; At 18Vdc: 3.8mA. · · Dimensions: 114mm diameter x 132mm deep.