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White rectangular sensor unit with magnetic contact strip, 23 by 13 by 60 mm

Ruth's sister

Ruth's sister Door Alarm System White 433 MHz 120m

SKU CH-VBE7-PHA0T

A wireless magnetic door and window sensor operating at 433 MHz with a 120 m open-range transmission distance and a 90 dB alarm output

  • Wireless 433 MHz link reaches 120 m open range
  • 90 dB siren alerts instantly when door or window opens
  • Magnetic sensor fits gaps under 1 cm with supplied adhesive
  • Operates from −10 °C to 55 °C for year-round reliability
  • Compact 23 × 13 × 60 mm white housing mounts discreetly

White 433 MHz Door Sensor

This white detector alarm operates on a 433 MHz wireless frequency with a transmission distance of about 120m without barrier. It is designed for home security use on doors and windows, sending a signal to a compatible host panel when the magnetic gap opens. The unit requires a matching panel with the same parameters and is not universal for all panels.

Adhesive Mounting Under 1cm Gap

Installation uses the included double-sided adhesive to attach the sensor to the door or window frame. The magnetic scale line must be aligned and the installation spacing kept less than 1cm for proper operation. The detector alarm only is supplied; other accessories shown in pictures are not included.

Single Zone Coverage Up to 120m

One detector covers a single entry point within the 120m open-air range, suitable for a door or window in a residential setting. It operates in temperatures from -10 to 55 and draws a low static current. The sensor cannot function without its specific host panel, so buyers needing a complete multi-zone system or a standalone alarm must look elsewhere.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 90% of the 7,839 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How can I confirm the 90 dB siren activates when the magnetic gap on the 23 x 13 x 60 mm sensor opens?

Open the protected door or window so the magnet separates from the sensor by more than 1 cm; the host panel should immediately sound the 90 dB alarm and send a call or SMS notification.

What items are included and what must I supply to make the detector work?

The box contains one white detector alarm measuring 23 x 13 x 60 mm with double-sided adhesive; you must buy a compatible 433 MHz host panel separately because the sensor is not universal and will not operate without it.

Which version of this detector should I choose for a 120 m open-area range?

Select the white 433 MHz model rated for about 120 m transmission distance without barriers; it operates from -10 to 55 °C and matches panels that use the same 433 MHz parameters.

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