Q. A PIR (Passive Infrared) sensor is primarily used for:
एक पीआईआर (निष्क्रिय इन्फ्रारेड) सेंसर का मुख्य रूप से उपयोग किया जाता है:
Explanation
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व्याख्या जल्द ही उपलब्ध होगी। कृपया बने रहें।
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