● Components & Accessories In stock
SMK magnetic contact sensor
SMK magnetic contact sensor (reed switch) — a door or window opening detector for security alarm and access control systems. Triggers when the magnet is separated. In stock in Tashkent, with delivery.
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Type
Magnetic contact detector (door contact)
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Model
Magnetic contact
Specifications
- Type
- Magnetic contact detector (door contact)
- Model
- Magnetic contact
The SMK magnetic contact is the basic opening detector for an intrusion alarm: a reed switch on the frame, a magnet on the leaf. The door or window opens — the contact breaks, the panel raises the alarm. Simple, fail-safe classics that have protected doors, windows, hatches and cabinets for decades.
Advantages
- Instant reaction to a door or window opening
- Needs no power: a reed switch runs without batteries
- Works with any alarm panel over a wired loop
- Concealed installation leaves the interior intact
- A trivial price for years of trouble-free service
Applications
- Entrance doors of apartments, offices and warehouses
- Windows of ground and top floors
- Hatches, equipment cabinets, server racks
- Emergency exit doors — verifying they stay closed
Frequently asked questions
What is the gap between the magnet and the reed switch?
The standard gap with the leaf closed is up to a centimeter: the sensor holds contact through normal door play and trips on a real opening.
Does it work with wireless panels?
Not directly — it is a wired detector: it joins a wired panel's loop or a wired zone of a radio expander.
Does a metal door affect it?
It does — for metal doors and gates take the reinforced metal SMK with a larger gap tolerance: it is in our catalog.
Related articles
- How much do video surveillance, access control and fire alarms cost in Tashkent: SAT Solutions price index, September 2026
- Uzbekistan's regulations on video surveillance, access control and fire alarms: a reference with document numbers
- Fire alarm servicing in Uzbekistan: an annual plan, not “once a quarter”
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