Honeywell Ademco 5818MNL Recessed Door Transmitter
Key features
- •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, most labor intensive installa
- •With a demonstrated outdoor range of over a mile, the 5800 Series has the best performance of any transmitters available today.
BrandHoneywell
CategoryGarage Doors, Openers & Parts
Honeywell Ademco 5818MNL Recessed Door Transmitter
List Price: $87.35$78.62DEALYou Save: $8.73 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 23, 2026In Stock (5)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers4.5
out of 5
Based on 10 reviews
5★
80%
4★
10%
3★
0%
2★
10%
1★
0%
love it! Clean look the girlfriend loves
Joey W.•April 10, 2018
Well worth the 3/4" inch hole in your door or casing for a clean and custom look. Took 10 minutes to insert battery and drill holes for this and battery opposite in door or casing which ever you do not place transmitter in. Came in manufacturer package and with a battery. Would purchase again!
Clean install
A. Emerson•March 11, 2018
Easy installation, works fine installed in wood front door frame. Will probably buy more for the back door and a few windows, to replace unsightly stick-on wireless contact sensors.....
Unique application for this recessed door switch.
Oh-Well-Darn•March 10, 2018
Plan on using this as an earthquake detector for triggering a water main shut-off valve. This Ademco switch will work with my Z-Wave enabled security system to trip a Z-wave controlled water shut-off valve if there is any earth movement. Magnet will be mounted to hang above the switch to keep it closed unless their is an earthquake. If the earth moves the magnet will swing and open the switch. This will be the condition to trigger the closure of the water main valve. If any pipes are broken below or inside the house during a major California earthquake no water should flow inside the home. Water main shut-off valve will also close automatically if there is a power outage which could also occur during a major event like an earthquake. A small 9VDC or 12VDC battery or other power source applied to the valve will open the valve even during a full-blown extended power outage.
It's easy to install if you have a drill
1234rc•March 2, 2017
This is worth the extra money to get rid of the ugly and cheesy looking door sensors. It's easy to install if you have a drill. If you're wondering what kind of hole you need I drilled a 3/4" hole in my door jamb for the sensor and then a 3/8" hole in the door for the magnet. Just grab a 3/4 spade bit and a 3/8 bit when you order and you'll be set. Works great
This is a much better sensor alternative than the traditional rectangles you see mounted ...
Jaycie•October 23, 2016
This is a much better sensor alternative than the traditional rectangles you see mounted above doors. It took a bit to install, and the thin plastic lip can slice you if you're not careful. It also uses a single AAA battery which could easily be a rechargeable and save you a good bit on alarm batteries over the years.
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