Explosive capsule for thermal lock

The invention relates to the field of firefighting equipment, in particular to thermal locks for sprinklers, and is intended for opening sprinklers and automatically initiating the fire extinguishing. The proposed invention is characterized in that in an explosive capsule for a thermal lock comprising a housing made of brittle material, which contains a sealed cavity filled with liquid and a state sensor comprising an electrical conductor partially arranged within the housing cavity; the electrical conductor arranged within the housing cavity is divided into two parts, wherein the ends of each part contact with the liquid, while the liquid used has electrically conductive properties.