Gas Detection and Alarm Systems

One-point Type Gas Alarm System NV-100M



  • Full maintenance functions with very easy zero and span adjustment.
  • Proven reliability with years of experience – COSMOS gas sensors have a small zero drift, a small sensitivity  decrease, and a long life.
  • Zero suppression function cancels slight fluctuations of the reading due to environmental change.
  • Compact Indicator/Alarm unit – W113 x H204 x D71.5 mm, Approx. 1.5kg.
  • Battery provides backup power in case of a power failure, allowing continuous monitoring over 60 minutes after the failure (option).


Model NV-100M
Detection Principle Depends on the detector specifications
Gas Detected
Detection Range
Concentration Indicator LCD bar-graph meter with backlight
Alarm accuracy Depends on the detector head specifications
Operation Temperature 0 to +40 °C
Power Source 100 to 240 VAC, 50/60Hz (standard), 24VDC (option)
Power consumption 7 VA/12 DA (with the backup power source)
Alarm indication 1st stage: Red lamp for 1st stage alarm flashing
2nd stage: Red lamps for 1st and 2nd stage alarms flashing
Trouble Indication Power source lamp lights up in orange
External output Alarm output terminal: 1st alarm (1c no-voltage contact), 2nd alarm (1c no-voltage contact), Trouble alarm (1c no-voltage contact); Buzzer (1a no-voltage contact); Analog output: 4-20 mA; Contact capacity: 2A@100 VAC (resistance load)
Dimensions and Weight W113 x H204 x D71.5 mm, Approx. 1.5kg (without backup power source)
W113 x H234 x D110 mm, Approx. 3kg (with backup power source)

Connectable Gas Detectors

Diffusion type:KS-7DKS-7OKD-12 series

Extractive type:PS-7PD-12 series

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For telephone inquiries, please call your nearest New Cosmos Electric office.

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