Based on this product's specifications, here are some alternatives and similar models
Dust cover for detectors SATEL OP-100 set of 10 – protective housings for sensor openings
Summary description:
Set of 10 SATEL OP-100 dust covers designed to protect detector openings from dust and debris. These protective caps fit compatible SATEL detector models and serve as simple mechanical barriers to maintain sensor cleanliness and prolong device reliability. Suitable for installation during storage, transport, or in dusty environments to reduce false readings and maintenance.