Rauchmelder als Grenzwertmelder zur Brandfrüherkennung und -meldung, mit optischem Messverfahren nach EN 54-7
optical smoke detector for D - Loop with two optical sensors and a bidirectional isolator according to EN 54-7 /-17 /-18
optical smoke detector for early fire detection and alarm, with optical measuring method according to EN 54-7 for use in potentially explosive atmospheres (ATEX)
conventional detector for early fire detection and alarm, with optical measuring method according to EN 54-7
r als Grenzwertmelder zur Brandfrühersterkennung und -meldung, mit optischem Messverfahren nach EN 54-7
systems with an optical measurement method for earliest fire detection and indication according to EN 54-7. Mesh design
systems with an optical measurement method for earliest fire detection and indication according to DIN EN 54-7. Round glass design
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