Secvest 2WAY FOS 550 E wireless window bar lock, brown front view

Secvest Wireless Window Bar Lock FOS 550 E - AL0145 (brown)


The VdS-approved FOS 550 E wireless window bar lock actively secures windows and French doors. The dual-point automatic locking system and effective magnetic field sensors prevent intruders from entering with a pressure resistance of up to one tonne and report even the first attempt at opening to the Secvest alarm panel. The Secvest wireless window bar lock is suitable for windows and French doors with turning and tilt-and-turn fittings that open inwardly, and is 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.

Product advantages

  • Active intrusion protection (immediately detects break-in attempts)
  • With automatic locking system ("window closed" = "window secured")
  • Two locking points with pressure resistance of over one tonne
  • Suitable for windows and French doors with turning and tilt-and-turn fittings that open inwardly



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

Disposal & labelling of packaging
Battery - max. battery life: 2 y
Battery - type: 2 x 1.5 V LR03 AAA alkaline batteries, Varta Industrial / Industrial Pro, Duracell Industrial, Panasonic Powerline
Certifications: VdS (mechanics)
Colour: brown
Compatible with: Secvest, BUMO60040
Connections: Clamping terminal
DC voltage supply: 3 V
Environmental class: II
Height: 50 mm
Housing material: ABS Stainless Steel
Installation location: Windows and French windows
Length: 170 mm
Locking number: AL0145
Max. operating temperature: 55 °C
Max. transmission range (building): 30 m
Max. transmission range (free field): 100 m
Min. operating temperature: -10 °C
Modulation: FM
Radio power: 10 mW
Sabotage monitoring: Yes
Sensor type: Magnetic switch and magnetic field sensor system
Type of detection: Magnetic field measurement
VdS approval no.: M 197093
VdS class: other
Voltage monitoring: Yes
Width: 32 mm
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