DOL 53 Ammonia Sensor

DOL 53 Ammonia Sensor

The first NH3 sensor for continuous measuring of the ammonia concentration in the house air

DOL 53 is an electrochemical, long-term stable NH3 sensor developed by the company Dräger, and the Big Dutchman group is the first and only equipment supplier offering this sensor.

It permanently monitors the ammonia concentration in the house air, thus enabling the house climate to be controlled based on the sensor’s measurements. DOL 53 is very robust and well-suited for use in livestock facilities.


  • Exact and continuous measuring of the NH3 concentration in the house air
  • Reliable sensor with measuring range that covers concentrations typical for livestock production
  • Easy integration into existing houses and their climate control systems
  • Robust and dependable system
  • Easy to install


  • Analogue 0 to 10 V output
  • Climate computers ViperTouch and 307pro can receive and process the data provided by the sensor to regulate the house climate
  • The AC Touch alarm unit can record the data and use BigFarmNet to analyse them