Honeywell 5818MNL vs 5800RPS

The 5818MNL is one of Honeywell's most popular recessed wireless door and window contacts. Often regarded as the alternative to the 5800MICRA, the 5818MNL is a sensor that uses a magnet to determine whether a window is open or closed. This is the more traditional sort of door and window sensor, and operates in exactly the same way that the 5816 and 5811, Honeywell's most popular non-recessed wireless door and window sensors operate.

The 5800RPS, on the other hand is what is known as a plunger switch. These do not use a magnet, but, rather, pressure to determine the state of a window or door. The 5800RPS's plunger is a bit round, which allows it to be used in swinging door/window applications (whereas some plunger sensors, such as Honeywell's wired 955PS, are more like buttons and would require that the door or window be a slider so as to not hit up again the side of the plunger switch when closing.

Some prefer to use 5800RPS switches in places where magnets are a bit more finicky. These applications might include steel doors, though there are magnets that work well in that sort of application. The downside to a plunger switch is that it operates on a spring. This spring can be worn down, and when it is, the plunger will begin to stick. This doesn't usually happen until after thousands and thousands of uses. But they do tend to wear out much sooner than the more traditional magnet-based sensors.

Did you find this answer useful?

We offer alarm monitoring as low as $10 / month

Click Here to Learn More
It's hard to say if it will work or not but encasing the sensor in cement could certainly reduce the signaling range so at best the sensor may not transmit as far as usual. Is there a way to test it without needing to first drill the hole into the cement? If it didn't work, would you be able to patch up the hole and use a surface mount sensor instead?
Will either or both 5818MNL or 5800RPS sensors work with part of the senor going into a cement block wall? The house has cement block wall and there is only one 2 x 4 attached to the block opening for the door.
This should be a similar replacement - . If you need white, you'd have to get a 951WG ( ) and just use the magnet portion.
It's any way to get a magnet for the 5818, my one is gone when I replace the door.
Hi Matt, I'm not sure what you are asking. The 5818MNL is the part number of the sensor that uses a magnet. Please email us at if you have further questions on which sensor to use.
though there are magnets that work well in that sort of application, can you tell me more info on this, part # ?

Related Products

Wireless Mini Recessed Door Sensor and Window Sensor
List Price: $70.00
Our Price: $37.99
Wireless Recessed Door Sensor
List Price: $70.00
Our Price: $49.99

Related Categories

Answered By