Opening Detector, 4 m, 4-core (brown)

Opening Detector, 4 m, 4-core (brown)


The opening detector is a magnetic contact for protecting doors and windows. Unauthorised opening is detected and reported to the alarm center. The opening detector consists of a magnetic contact (reed) and a magnet. These are fitted parallel, in front of, or at right angles to each other at a distance of 13 to 25 mm apart. The electric circuit of this NC opening detector is normally closed (NC). If the distance between the reed and the magnet increases, the circuit is broken and an alarm reported. The detector is tamper-protected. The optimum installation location is the middle of the door or window frame. It can also be fitted to the bottom of the window frame if a particular window with a magnetic contact is to be tilted open. The detector is suitable for both flush and surface-mounted installation. The opening detector is VdS certified and available in white and brown.

For safe and proper operation, this device must be installed and regularly maintained by a professional trained by us. Arrange regular maintenance appointments with your installer to ensure trouble-free operation in the long term with the latest security updates and new functions.

Awards & Partners
VdS certificate
As a company in the German Insurance Association (GDV), the VdS damage prevention center is the independent certification center for security technology. With its strict certification guidelines, the VdS ensures products, which guarantee security.
EN50131 Grade 2 Logo
EN50131 Grade 2 Logo
Awards & Partners

Product advantages

  • For reliable perimeter security
  • For securing doors and windows
  • For installation and assembly
  • VdS certified: G 105519


We have summarised for you which disposal information is important in your country.

Disposal & labelling of packaging
Cable length: 4 m
Cable type: 4-core
Certifications: VdS B, EN 50131 Grade 2, VSÖ GS-N
Colour: brown
Compatible with: Secoris, Secvest, Terxon
Connections: NC, max. contact capacity 24 V DC / AC / 0.2 A / 4.8 W
Dimensions: (WxHxD) 11x12x48 mm
EN: Grade 2
Environmental class: IIIa
External field protection: No
Height: 12 mm
Housing material: ABS
Installation location: Integration / surface mounting
Installation type: Surface mounting/recessed mounting
Length: 48 mm
Max. operating temperature: 55 °C
Min. operating temperature: -40 °C
Sabotage monitoring: Yes
Sensor type: Reed contact
Type of detection: Magnetic field measurement
VdS approval no.: G 105519
VdS class: B
Width: 11 mm
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