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Three white wireless door alarms with magnetic sensors, 3-pack

Alarm System 3-Pack

SKU CH-SHDT-3QW9C

A three-pack of wireless door and window alarms with 3-level volume control, 2-in-1 alarm and chime modes, and a 0.78-inch magnetic trigger distance

  • Quick alert when doors or windows open beyond .78 inches
  • Three volume levels suit homes, hotels, garages and sheds
  • Peel-and-stick mounting on doors, windows, cabinets and drawers
  • Compact wireless units travel easily in a backpack
  • 36-month registered warranty backs the 3-pack

3-Pack Door & Window Alarm System

This wireless alarm kit includes three units designed for home security and child safety. Each sensor triggers an audible alert when a door or window opens beyond a 0.78 inch gap. The compact devices suit houses, hotels, caravans and sheds.

3-Level Volume & 2-in-1 Chime Mode

Users can select from three volume levels to match the environment. A chime setting provides a softer notification for everyday awareness while the alarm mode delivers a louder warning for security events.

12-Month Sensor Gap & 36-Month Coverage

The magnetic contact reliably detects separation up to 0.78 inches, giving clear warning before an opening widens. The manufacturer backs the hardware with a 36-month warranty for registered owners. Not suited for buyers who need smart-home integration or app-based monitoring.

How it compares

Measured against everything we stock in Security Alarms & Accessories, at today’s prices. Recalculated every night.

Price $23.99
Cheaper than about 58% of the 107 comparable items (median $29.99).

Specifications

No published specifications for this item yet.

Questions about this item

How often will the batteries in these door alarms need replacing?

The alarms run on replaceable batteries; a low-battery indicator alerts you when power is running low, so you can swap cells before the unit stops sounding.

What is the maximum gap allowed between the alarm and its magnetic sensor before the alert triggers?

The alarm sounds and the LED lights up once the separation exceeds 0.78 inches, giving a clear limit for door or window positioning.

How loud do these alarms get on the highest of the three volume settings?

The highest of the three volume levels produces a piercing tone designed to be heard throughout a house, hotel room or caravan.

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