Now one tough sensor can work in three harsh environments. With the stability you can count and low cost you want, the EC-FX-NH3 is the new gold standard in ammonia detection. If you use ammonia as part of your refrigeration process, you face several challenges in protecting your plant from the danger and expense of ammonia leaks within cold storage, refrigerated process areas and the engine rooms. Introducing a better, tougher, longer-lasting sensor to cover your needs. The EC-FX-NH3 maintains sensitivity and accuracy - even with rapid changes in temperature and humidity.