Precision starts at the source—with the Observer-i Microphone 40AB.

At the heart of every reliable ultrasonic gas leak detection system is the ability to capture sound with absolute accuracy. The Microphone 40AB (805773-1A) is engineered specifically for the Observer-i, delivering high-fidelity acoustic sensing for fast, dependable leak detection in critical environments.

Designed as a direct replacement and performance-critical component, it ensures your detection system continues to operate at peak sensitivity—protecting people, assets, and operations without compromise.