Introducing the H₂S Guardian by Graphic Controls

The Guardian line of Hydrogen-Sulfide (H₂S) Detectors are designed to service the natural gas and petroleum industries. Constructed to meet the industry's highest standard of water and dust resistance, Graphic Controls Guardian delivers reliable performance even in the most demanding conditions.

Our detectors were designed with the field operator in mind emphasizing:

• Ease of use
• Reliability
• Durability
• Low Maintenance

Sensors

The H₂S Guardian utilizes an advanced electrochemical sensor that responds quickly to the presence of hazardous gas. Advanced electronics with embedded software compute accurate concentrations in parts per million (ppm).

Our Peak Detection feature records the highest reading that the sensor has been exposed to since it was last cleared.

Alarm Functions

Two factory-set alarm conditions indicate TWA (10 ppm) and STEL (15 ppm) conditions with both audible tone, flashing LEDs and vibration. The alarm can be muted for diagnostic applications.