Call Toll Free 1-877-781-7178
or 1-732-583-7878

PayPal Logo
PayPal Acceptance Mark

Have you seen ...
Free shipping over $199
Shopping Cart:
now in your cart 0 items
Your cart is empty.
Free shipping over $199

Honeywell 5818MNL Recessed Door Window Transmitter








Replacement for 5818 Recessed Transmitter

The 5818MNL is a magnetic contact sensor that provides concealed protection for doors or windows.


The 5800 Series of door and window transmitters provide the most reliable, convenient and cost effective solutions for security protection. These devices are powerful and versatile enough to help solve even the toughest installations.


With a demonstrated outdoor range of over a mile, the 5800 Series has the best performance of any transmitters available today.




  • Includes self-contained transmitter and reed sensor
  • Virtually disappears once installed
  • Easy replaceable AAA Lithium battery
  • 0.5” gap (transmitter to magnet)
  • Features a tapered cylinder for easy and flush fit
  • Dimensions: 0.75" diameter x 3.0" length

Add to Cart:

  • Model: Honeywell 5818MNL
  • 102 Units in Stock
  • Manufactured by: Ademco/Honeywell

Parse Time: 0.219 - Number of Queries: 259 - Query Time: 0.13361545837402