A device (1) for removing deposits and / or precipitation on a substrate (10, 110) has at least one transducer (20, 120) that is captively connected to the substrate (10, 110) by means of a connecting layer (30) Connection layer (30) between the substrate (10, 110) and the transducer (20, 120) is arranged. According to the invention, the connecting layer (30) has a connecting material (31) and a filling material (32). Furthermore, an optical system for environmental monitoring is provided with an optical monitoring device with a lens and / or a viewing window and the above device, the lens or the viewing window being formed by the substrate.
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