A sensor designed to perform in all environments.


The GG-NH3 utilizes proven electrochemical sensor technology for fast and accurate leak detection. The standard detection range of the GG-NH3 provides real-time continuous monitoring of ammonia concentrations accurately down to 5 ppm, with no false alarms. Every GG-NH3 sensor comes equipped with an intelligent internal temperature control designed to perform in the harshest areas. The controlled environment provides optimum moisture control for extended cell life. The high-quality injection-molded polycarbonate enclosure offers excellent chemical corrosion protection and high impact resistance. The GG-NH3 provides an industry standard linear 4/20 mA output signal compatible with most gas detection systems and PLCs. The output signal is not affected by drastic temperature variations such as washdowns, defrost cycles, etc.

Key Features

  • 2-year warranty, including replacement sensor element
  • Electronics are potted to completely eliminate corrosion in wet environments
  • Ammonia specific electrochemical sensor technology. Absolutely no false alarms
  • No more special-order guesswork or added costs for heated enclosures
  • Industry standard linear 4/20 mA output
  • Corrosion, weather, and chemical resistant polycarbonate sensor enclosure
  • Intelligent-design temperature controlled enclosure for improved cell life
  • Sensor designed to adapt to any harsh environment from -50°F to +140°F
  • Accurately monitor OSHA’s PEL, STEL, and IDLH setpoints
  • Real-time continuous monitoring for early leak detection
  • Any sensor can be field calibrated to any range listed


  • Versatile for any application
  • Easy to order
  • Low cost
  • Simple operation
  • Rugged and reliable


  • Food Processing areas
  • Cold Storage
  • Compressor Rooms
  • Tank Rooms
  • Ventilation Ducts
  • Sea Vessels
  • Refrigeration Systems
  • Perimeter Monitoring
  • Pulp and Paper
  • Heat Treatment
  • Breweries
  • Chemical Plants


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