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Price
$39.99
Olympia TF 400 Opening Detector (for Doors and Windows, 90 dB Siren, Wireless, Battery Operated Door Contact and Window Contact with Alarm Function) โ€” image 1
Alarm SystemsOLYMPIAโœ“ In stock

Olympia TF 400 Opening Detector (for Doors and Windows, 90 dB Siren, Wireless, Battery Operated Door Contact and Window Contact with Alarm Function)

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$39.99
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About this item
  • Effective protection: interruption of magnetic contact triggers audible warning signal, activation and deactivation via slide switch
  • Quick installation: magnetic unit and contact sensor are attached to the frames and wings of windows or doors via adhesive strips
  • Easy to use: no configuration, wiring or networking with house alarm required, alarm on the transducer = 90 dB / at 1 m distance = 85 dB
  • MULTIPURPOSE Use for securing doors, windows and roof hatches in apartment, home, garage, RV, basement room and office
  • Product details: Dimensions = 40 x 60 x 20 mm, weight per unit = 34 g, 3 x LR44 batteries per sensor included
Product description

4 x Olympia TF 400 opening detectors for doors and windows. High security for your home without complex installation and wiring? The two-piece TF 400 from Olympia makes it possible. Both units are attached close to each other both on the frame and on the wing of windows and doors with an adhesive strip applied at the back. As soon as the magnetic contact is interrupted by an opening, a clearly perceptible alarm emits intruders and scares you up. No technical knowledge is required for the installation of the TF 400, nor is networking with a home alarm system necessary. Product highlights: For securing doors, windows and roof hatches in the home, garage, camper, basement room and office. No configuration, wiring or networking with home alarm required. Magnetic unit and contact sensor are attached by adhesive strip. Easy activation/deactivation via slide switch. PRODUCT DETAILS: Dimensions: 40 x 60 x 20 mm. Weight per unit = 34 g. Alarm on the sound transducer = 90 dB / at 1 m distance = 85 dB. 3 x LR44 batteries per sensor included. Get a plus in safety now with the practical TF 400 opening detector from Olympia

Product details
Brand
OLYMPIA
Manufacturer
GO Europe GmbH
Colour
White

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
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Excellent
4.5 average rating
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S
Sigalit
๐Ÿ‡ฎ๐Ÿ‡ฑ ยท January 2026
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I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
๐Ÿ‡ฆ๐Ÿ‡บ ยท November 2025
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The package was here in Australia from England in a few days โ€” so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 1โ€“2 of 10 reviews

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