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Four compact white magnetic sensor alarms with separate magnet pieces

FineLife

FineLife VT-07989 Alarm System 4 Sensors 90 dB

SKU CH-52TC-FPG18 MPN VT-07989

Set of four magnetic door and window alarms with a 90 dB siren for discreet entry-point security

  • Selling UnitEach
  • TypeWindow & Door Alarms
  • Item Count1
  • FeaturesCompact and discreet design for inconspicuous placement
  • Deters intruders with a loud 90 dB siren
  • Four magnetic sensors cover multiple entry points
  • Compact design allows discreet placement on doors or windows
  • Simple magnetic operation requires no wiring or complex setup
  • Ready-to-use set provides immediate protection for home or office

Magnetic Door & Window Sensor Alarm Set

This alarm system contains four magnetic contact sensors designed to protect doors and windows. When a protected entry point opens, each unit emits a 90 dB siren. The set is intended for homeowners or small-business operators who want a simple, battery-powered deterrent without professional installation.

Best for renters and DIY users.

The sensors suit tenants or owners who need an immediate, tool-free way to secure ground-floor windows and doors. They do not connect to a central panel, smartphone app or monitoring service, so buyers who require remote alerts, entry logs or police dispatch should consider a different solution.

90 dB siren output

The decisive specification is the 90 decibel alarm volume produced by each sensor. At this level the sound is loud enough to startle an intruder and alert occupants in the immediate area, yet it remains a standalone audible deterrent with no external signalling capability.

Highlights

  • Deters intruders with a loud 90 dB siren
  • Four magnetic sensors cover multiple entry points
  • Compact design allows discreet placement on doors or windows
  • Simple magnetic operation requires no wiring or complex setup
  • Ready-to-use set provides immediate protection for home or office

Specifications

BrandVistaTech
ModelVT-07989
Selling UnitEach
TypeWindow & Door Alarms
Item Count1
FeaturesCompact and discreet design for inconspicuous placement

Questions about this item

What must I already have on each door or window for the magnetic sensors to trigger the alarm?

Each entry point needs a ferromagnetic surface — typically the metal frame or a small metal plate — so the magnet half of the sensor can hold the reed switch closed until the door or window opens.

Will the 90 dB siren still be effective if I keep my existing mechanical window locks in place?

Yes, the magnetic sensors mount independently of any mechanical lock, so the alarm activates whenever the contact separates regardless of whether the original lock is engaged.

How can I verify every unit is working after I stick the four sensors in place?

Open each protected door or window one at a time; the 90 dB siren on that specific sensor should sound immediately, confirming the magnetic gap triggers the alarm.

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