Add $50.00 for FREE shipping
Alert System Type
Entry Alert
Sensor Type
Door / Window
Audible Indicator
Battery Operated
LED Feedback
Wall Mounted
User Interface Type
Ease of Installation
Beginner (Installs < 10 minutes)
Other Ways to Shop
In Stock
On Sale

Compact Magnetic Alarm to Protect Doors and Windows
Swann SW351-MDA Magnetic Window Door Alarm, 110dB
Swann SW351-MDA Magnetic Window Door Alarm, 110dB
Swann SW351-MDA Magnetic Window Door Alarm, 110dB
Item# 76121
Price: Normally $14.99 
Hot Deal $7.19
Free shipping on orders over $50 - See Details


  • Powerful 110dB+ siren sounds when window or door is opened
  • Easy to install - self-adhesive pad supplied, no tools required
  • Easy to use with operating mode indication
  • On/Off switch concealed under panel
  • Compact design for discreet positioning near entry points
  • The alarm is activated when the 2 panels are separated
  • Requires 4 x "LR44" batteries (included)

Essential Info

The Swann SW351-KCH is a battery operated magnetic door/window alarm that notifies you of intruders with its 110dB+ alarm. This unit is easy to install and requires no tools - a self-adhesive is supplied.

What's Included

  • Alarm Unit
  • Magnetic trigger
  • Four LR44 batteries
  • Specifications

  • Power Requirements: 4 x LR44 Button Cell Batteries (6V DC)
  • Siren Duration: 60s (approx)
  • Siren Volume: >110dB
  • Magnetic Switch Trigger Range: 10mm ~ 26mm
  • Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: Swann Communication USA Inc, Tel: (800) 627-2799


    2 Ratings
    5 star: 50%  (1)
    4 star: 0%  (0)
    3 star: 0%  (0)
    2 star: 50%  (1)
    1 star: 0%  (0)
    Average Customer Rating
    (2 customer ratings)
    Share your thoughts with other customers
    Balleyman -- sayre, PA   12/5/2012
    I love the way this product works. Easy to setup and install and has a very loud alarm. Only issue is it takes four 357 watch type batteries at a cost of about $10 or more and chews through them in 4-5 weeks. I have two of them so I am spending around $20 per month for batteries for these alarms. What a waste. I am removing them and looking for replacement alarms that are more energy efficient. Rating 5 for quality and performance, 1 for energy efficiency so 2 overall.

    Related Items

    Customers Also Bought

    Sign-up for Exclusive Email offers 
    How to Order Track Your Package Shipping Returns Contact Us Customer Service Retail Store
    Getting Started Learning Center FAQ Dealers Customer Testimonials Affiliate Program
    About Us INSTEON Press Awards Employment Guarantees Security & Privacy
    Free Catalog Email Newsletter Forum RSS Site Map
    Have questions? Call us at 800-762-7846 (Mon-Fri 5am-7pm and Sat 6am-3pm PT) or send us a message
    Place your order by 3pm PT for same day shipping
    Copyright 1995-2014 SMARTHOME™
    Verisign Secure Site PayPal Acceptance Mark