AO2™ Control Hub

Comprehensive Transformer Intelligence

Robust AO2™ Control Hub Enhances H2scan’s Patented Hydrogen Sensor Offerings

Maximize local and remote transformer asset condition visibility with the AO2™ Control Hub from H2scan. Designed to pair seamlessly with H2scan’s GRIDSCAN™ 5000 or GRIDSCAN™ 6000 Transformer Gas sensors, the AO2 Controller adds to an already complete transformer monitoring system.

The AO2 provides local display functionality, supports external sensors such as load current and top oil temperature and also adds local alarming relay contacts. This helps operators correlate gassing with measurements that include load and transformer temperature.


  • Combines display, communications, alarming and analog I/O for the widest range of applications 
  • Out-of-the-box solution autodetects H2scan GRIDSCAN 5000 or GRIDSCAN 6000 sensors immediately with no configuration required 
  • Low cost of ownership supports fleetwide coverage for transmission and distribution grids, increasing safety, smarter deployment of capital, reduction in SAIDI and all the consequences associated with equipment failure  
  • Displays hydrogen gassing trends 
  • Magnet mount for rapid and secure installation and eliminates the need for framing construction 

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