... 57C (135F) detection, UL521 and EN54-5 approved Security Alarm,heat detector, heat alarm with fixed and rate-of-rising temperature heat detector, heat ... .0A@30VDC/0.5A@125VACDimensions:100mm (dia) x 46mm (ht) with baseWeight:120g/set with base, Security Alarm with UL,EN and CE