CITY Original 4OXV CiTiceL Oxygen (O2) Gas Sensor – Electrochemical, AAY80-390

Need a reliable oxygen sensor for your gas detector?

This is the real deal—an original CITY 4OXV CiTiceL electrochemical sensor.

It's designed for general and portable gas detection applications, giving you accurate O2 readings.

Brand new and in its original packaging, it's part number AAY80-390.

Made for the pros who need a drop-in replacement for their equipment.

Whether you're maintaining safety gear or building a new monitor, this CITY sensor is the quality choice.

Straight from China with all the specs you expect from a top-tier brand.