The Calisto™ H1 includes the industry’s premier solid-state hydrogen sensor technology in a robust yet compact package. It continuously samples the oil in transformers to detect spikes in hydrogen levels that are often indicative of an electrical fault.

The Calisto H1 is Doble’s latest product from the Calisto Condition Monitoring Platform, which includes the Calisto T1, Calisto 2, Calisto 5 and Calisto 9 DGA monitors as well as the doble PRIME suite of products.

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