KERUI DIY Magnetic Door & Window Alarm Kit (20-Piece Pack)

Complete Peace of Mind—Zero Hassle, Instant Protection

Safeguarding your property shouldn’t require complex wiring, expensive subscription fees, or professional installation. The KERUI 90dB Magnetic Entry Alarm Kit is the ultimate DIY security solution designed to protect your home, family, and valuables in seconds.

With 20 individual sensors included in this pack, you can easily secure every vulnerable entry point in your house, garage, or mobile setup without breaking the bank.

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Key Features

• No Installation Required (True DIY): Forget drilling holes or running wires. Each sensor features a high-strength adhesive backing. Just peel, stick the alarm to your door or window, align the magnetic strip on the frame, and your zone is secured.

• Loud 90-Decibel Siren: Despite their compact size, these alarms pack a punch. When a door or window is opened and the gap exceeds 0.5 inches (10mm), a piercing $90\text{ dB}$ alarm sounds instantly—loud enough to deter intruders and immediately wake or alert you.

• Easy ON/OFF Toggle Switch: Need to keep a window open for fresh air or let the dog out? Simply slide the manual switch to “OFF” to temporarily disable the alarm, and flip it back to “ON” when you want active protection.

• Massive 20-Piece Value Pack: One box covers your entire property. Perfect for sealing off front doors, back doors, sliding glass patios, basement windows, and side gates all at once.

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One Alarm, Endless Scenarios

Because these sensors are entirely battery-powered and wireless, they are incredibly versatile:

• Homes & Apartments: Secure main entryways and easily bypassed ground-floor windows.

• RVs & Campers: Protect your home-on-the-wheels while parked at campsites or public lots.

• Garages & Tool Sheds: Keep high-value tools and equipment safe from opportunists.

• Child & Pet Safety: Place them high on doors or cabinets to be alerted instantly if a toddler or pet tries to sneak outside or access off-limits areas.

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Specifications & Quick Setup Guide

Parameter	Details
Quantity	20 Complete DIY Sensor Units
Alarm Volume	$\ge 90\text{ dB}$
Power Source	Battery operated (Pre-installed, non-rechargeable)
Trigger Distance	Active gap $> 0.5\text{ inches}$ ($10\text{ mm}$)
Mounting Type	High-tack self-adhesive backing