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Magnet detectors SA-203

SA-203

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JABLOTRON ALARMS S.A.

The SA-203 is a mini self-adhesive magnetic contact with a two-wire lead and NC (normally closed) output, intended for wired door and window circuits. Size 33 × 8 × 9 mm, surface-mounted with adhesive tape. Typical operating gap up to approx. 15 mm depending on magnet alignment and frame design.

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SA-203 is a compact magnetic contact designed for wired alarm installations. Its small white plastic housing allows unobtrusive surface mounting on door and window frames.

The unit features a two-wire lead and a standard NC (normally closed) contact, suitable for direct connection to most alarm control panels. Mounting is surface type using the adhesive tape on the back of the housing; the magnet should be positioned to close the circuit when the door or window is shut.

Dimensions are 33 × 8 × 9 mm. The typical operating gap is up to approximately 15 mm, though actual gap depends on frame geometry and precise magnet placement. The compact size makes the SA-203 appropriate for installations where minimal visual impact is desired.

Installation and usage notes:

  • Ensure the mounting surface is clean and dry to achieve reliable adhesive bonding.
  • Align magnet and contact so they engage reliably when the door/window is closed.
  • Route and protect the cable to prevent mechanical damage or accidental disconnection.
  • Test the contact with the control panel or a continuity meter before finalising installation.

SA-203 offers a cost-effective, discreet contact solution for perimeter protection in wired systems. Verify compatibility with the alarm panel and secure the adhesive properly for long-term reliability.

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Tehnička specifikacija SA-203

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