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Duotone panel — violet briefing on the left, lime-sealed detail sheet on the right.
4 Ohm 3 Watt Speaker 51mm Diameter (Pack of 2) KY 039 Finger Heartbeat Detection Sensor Compact Design Space efficient form Compact Design Space efficient form factor for tight installations Drop in replacement potential for ESP based modules with comparable pinout and feature set alarm circuits all products are sourced from authorized distributors with authentication verification
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