The Autronica 116-BHH-31A/EXN is an optical smoke detector, for the detection of combustion gases which mainly consist of visible large particles. The Autronica BHH-31A/EXN is an EEXN detector, designed for use in Zone 2 environments. The BHH-31A/EXN is not influenced by electrical radiance from mobile phones or other devices.
The Autronica 116-BHH-31A/EXN is designed for use with the Autronica BS-Fire Alarm Panels.