Products Designed & Certified to IEC60571/EN50155
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NSSPT Air Sampling Fire detection unit consists of Photo Electric Smoke Detectors, Suction unit with Airflow monitoring and LED VISUAL Indications. Alphanumeric display for displaying status of the system and shows the specific types of fault so that we can easily take an action against that fault to restore the system.

All these functionalities have been supported using digital computing enabled through microcontroller which is EMI /EMC protected.

The Primary application of this unit is to detect smoldering fire occurring in vicinity of suction pipe by sensing the by product of smoldering fire (i.e. Smoke) and flaming fire. The suction pipe is connected to the unit through a PG 29 Gland cable pipe connector. Air samples enter into the Chamber through openings on the suction pipe. Air flow monitoring has been implemented by calculating inlet and outlet air pressure difference


  • Latest Microcontroller based circuit system
  • Programmable type therefore control over sensitivity , Airflow & Alarm threshold level
  • Power On self Diagnostics
  • Robust SS Construction , facility for additional smoke & Fire monitoring system
  • Accuracy achieved through digital computation
  • Fault Diagnostics Data Download , Data Download capability.




Input Supply 20-30 V DC
Nominal Supply 24 V DC
Dimension (H X W X L mm) 140 X 290 X 350
Temperature Range Operation -20° C to +60° C
Storage Temperature -20° C to +85° C
Electrical connection 25 way sub –D Bucket soldering Connector