For harsh environments and situations where bio-fouling is extreme, the D-Opto Shutter system can be fitted to the D-Opto Sensor (not currently available for the D-Opto Logger).
The Shutter is a mechanical device that simply attaches to the side of the D-Opto, and is controlled by the same data logger that controls the D-Opto.
Between measurements the Shutter completely covers and protects the optical sensing window of the D-Opto. This prevents bio-fouling from developing, and sediments from accumulating, and protects the optical window from impact. Whenever a measurement is required, the shutter opens to expose the sensing window.
The D-Opto Shutter is simple to fit and straightforward to integrate into existing installations. Power consumption is very low. The D-Opto Shutter features self monitoring on-board intelligence that ensures reliable operation, even in the most hostile unpredictable environment.