Industrial Gas Sensor with High Sensitivity

I'm looking for an expert in gas sensors, particularly in the realm of industrial safety. The sensor I need must have the following characteristics:
- It should be able to detect low concentrations of gases.
- The main purpose of the sensor will be to ensure the safety of personnel in an industrial environment.
- This sensor will need to be able to monitor a wide range of gases and provide real-time data for quick responses to any potential issues.

Ideal skills for this project include:
- Profound knowledge and experience with gas sensors, particularly for industrial applications.
- Understanding of different gas types and their potential hazards in an industrial setting.
- Ability to integrate the sensor into an existing system or recommend a reliable setup for our specific needs.
- The capability to offer insights on potential calibration and maintenance requirements for the sensor.