Robust aluminium die-cast housing with a door aperture angle of more than 180° Operating instructions by means of symbols – EN 54-11

Function marking “HANDAUSLÖSUNG-Gaslöschanlage”, replaceable Reverse polarity protection

Optical activation indication by means of LED

Latching push button

Easy to replace standardised glass plate

Detector housing can be opened with key SCHL-HFM/HM (not included) Button in combination with LED for setting the physical address from 1 to 159 Plenty of room for cabling

Increasing the protection class to IP54 by using the optional Protection Kit for Manual Call Point HFM/HM-ZS-IP54