Kipp & Zonen is now delivering the full-feature DustIQ with tilt sensor, module temperature sensor, and daisy-chain capability. They also have available a filler panel the same size as the DustIQ. This is at the request of customers to neatly fill in the gap when a DustIQ is mounted in between PV modules in an array. DustIQ can be easily added to new or existing solar arrays and integrated into plant management systems. The unit is mounted to the frame of a PV panel and does not need sunlight to operate. It continuously measures the transmission loss through glass caused by soiling, so the reduction in light reaching the solar cells can be calculated.
Kipp & Zonen | http://www.kippzonen.com