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Hello! I've analyzed the provided installation guide for Helvar ActiveAhead Sense 3020/3021 sensor and 5692 circular holder. This guide provides step-by-step instructions, covering strain relief, spring adjustments, and ensuring a flush ceiling fit. I'm here to answer any questions you have about the installation steps or features of the device described in this document.
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What is the diameter range for the circular holder?
What should be ensured during installation?
What is the purpose of the strain relief?