ApolloIntrinsically Safe IS External Fire Alarm Manual Call Point55100-033

External type fire alarm manual call point manufactured for use in explosive atmospheres. Since the energy supplied to the button is limited, even the contact movement that occurs when the lever breaks does not become a spark capable of igniting the gas or dust in the atmosphere. It is used at locations exposed to both weather conditions and explosion risk, such as open fields, filling islands, and external units, by connecting to a panel in a safe area through a barrier.