Dust
Motion and air quality sensors are mounted away from open windows and high-traffic entry points.
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Aligarh's semi-arid climate means more airborne dust than humid subtropical neighboring cities, and sensors or switches mounted near open windows or entryways collect it faster than the same hardware would elsewhere.
How we solve it: Motion and air quality sensors are mounted away from open windows and high-traffic entry points, sealed switch plates are used throughout, and an annual service visit includes a dust and connection check on exposed hardware.
Most common in: Sir Syed Nagar, Dodhpur