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Unique Bargains N.C. Recessed Wired Window Door Contact Sensor Alarm Magnetic Reed Switch White HC34A 10pcs

Marketplace items sold by a third party are not eligible for Lowe’s offers.

  • Compatibility - This recessed door contact sensor works with any access control or burglar alarm system available

  • Normal Closed - NC means the circuit conducts when the magnet is together (light on) and breaks when separated (light off)

  • Installation - The magnetic door switch must be installed according to the specified sensing distance for proper operation

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