Very interesting and informative, Niksch, thank you. Were there many variants of this model of the late 40's with the same clip and barrel ? One sent me pictures of a 134 from the MB book very similar but with the cap band engraved. These caps were not engraved along the side like many other models ?
131-420 FRONT 131-420 REAR AND SIDE PROFILE. SEA-FIRE FIRE SUPPRESSION SYSTEM MONITOR WITH ENGINE SHUTDOWN CONTROL AND HIGH TEMPERATURE ALARM. Part No. 131-420. ELECTRICAL CONNECTIONS. Connect the plug on the back of the panel to the. corresponding plug on the Sea-Fire ESRS shutdown unit. Connect the blue wire to one of the temperature sensor. wires.
Dual sensor smoke detectors include both ionization and photoelectric sensors, so they should adequately alert homeowners of a smoldering fire or a fire with active flames.Some safety organizations have previously recommended these smoke alarms, because they should cover a broad range of fires.hen smoke enters the chamber, it scatters the light, which then hits the sensor and triggers the alarm. Photoelectric smoke detectors typically respond faster to a fire in its early, smoldering stage â before the source of the fire bursts into flames.