At last, an Ammonia sensor that works properly, at a reasonable cost. The NT-NH3 Cell is a new electrochemical gas sensor with 3 electrodes for the detection of Ammonia (NH3) in a variety of gas detection applications. Exhibiting high performance with long-term stability, The compact (20.4mm dia) NT-NH3 sensor is designed to monitor toxic levels of ammonia is a wide variety of industrial safety applications. The sensor is mechanically and electrically compatible with a wide variety of commercially available gas detection instruments