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Ammonia Sensor | GG-NH3
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Ammonia Sensor | GG-NH3

Order Number: GG-NH3
Low to mid range ammonia sensor designed for wash down areas, compressor rooms, coolers, docks freezers, etc.

Lead Time: 1 day

  • Now equipped with SAFECELL technology which checks the electrical viability of the electrochemical cell every 40 seconds. If it is determined that the cell is failed or missing; the 4-20 mA output will drop to 0.5 mA and fault.
  • Includes a 2 year warranty on sensing element and transmitter.
  • Designed "food industry tough" for wash-down areas, blast cells, engine rooms, etc.
  • The GG NH3 uses an ammonia specific electrochemical cell, designed to adapt to any harsh environment from -50°F to +140°F.
  • Circuit board sealed in potting material to protect sensitive sensor components and copper tracing from corrosion.
  • Select from a list of available ranges (0-100, 0-250, 0-300, 0-500, & 0-1000ppm NH3). Custom ranges available upon request.
  • Weatherproof NEMA 3RX washdown-duty polycarbonate enclosure safe for outdoors and wash-down areas.
  • Ideal for Engine Rooms, Freezers, Docks, Blast Cells, Food-Processing areas, Refrigeration Systems, Breweries, Refineries, and more.
  • Built in 3 stage heater for freezing temperatures.
  • Part Number (specify range): GG-NH3-100, GG-NH3-250, GG-NH3-300, GG-NH3-500, GG-NH3-1000.



Size 7.5" high x 6.5" wide x 3.75" deep
Weight 3.0 lbs
Power Requirements 24VDC @ 350mA
Signal Output 4/20mA, 700 Ohm max input impedance
Temperature Range -50F to +140F (-46C to +60C)
Detection Electrochemical (diffusion method)
Certification ETL listed to UL standard 61010-1, and CSA standard C22.2 No. 61010-1-12
Warranty 2 years sensing element and transmitter
Please review these other products:

GG-NH3 Replacement Cell

Order Number: GG-NH3-RC
Replacement electrochemical NH3 cell for the GG-NH3. Also recommended for use with Manning EC-F2 / EC-F9 / EC-FX transmitters.

Lead Time: 1 day

Duct Mount Kit

Order Number: DMK-1
Duct Mount Kit for use with CTI polycarbonate enclosures. Hardware connects to sensor enclosure to provide air from duct.

Lead Time: 1-2 days

Relay Module

Order Number: RM420-LR
Relay Module -  4-20 mA feed-through design maintains signal output function. Relay output with dry contacts, connects to CTI sensor enclosures. 

Lead Time: 1 day

Entrance Monitor | EM2

Order Number: EM2
The EM2 Entrance Monitor is used for remote display and/or as a single channel controller for gas detection systems.

Lead Time: 1 day