The channel leads to a detector sensitive to UVa & UVb.
The bulk of the light emitted by a corona / electrical discharge event is in the UVa and UVb range.
The non-solar blind CoroCAMs are differentiated by the quality of their detectors and the size of the light collection lens.
- The CoroCAM I is an entry level product and priced accordingly.
- The CoroCAM III is a research grade product with sensitivity roughly equal to that of the solar-blind cameras while using a lower technology detector.