A miniature solid state PCB mounting buzzer having a loud but pleasant 75d B tone & operating from a 12 Vdc supply. It is only 7mm highwhen mounted on the PCB. It will work with supply voltages ranging from 3 to 24 Vdc. Supply polarity is marked on the bottom of the case as an aid to installation. Two 2mm dia. holes are required 18mm apart. The case is finished in a cream colour. Specifications Resonant frequency 3.5k Hz Operating voltage 3 to 24 Vdc Current consumption at 12V5m A Sound output at 12V DC75d B at 30cm Temperature range-20 to 70 CDiameter 23mm Height without leads 7mm Lead length 8mm