The Honeywell MPS95WG is a recessed door or window contact with wire leads. The MPS95WG is also known as a stubby contact because the contact is only .85” long and .375” in diameter. With these dimensions, the MPS95WG is one of the smallest recessed contacts available from Honeywell. You can order the recessed contact in your choice of brown or white. The white version of the MPS95WG has a part number of MPS95WWG and the brown version has a part number of MPS95BWG.
Many people prefer recessed contacts to surface mount contacts because they are less noticeable. Recessed contacts are meant to be installed into the door or window you are trying to protect. Therefore, you cannot see a recessed contact when the door or window is closed. Even when the door or window is open, you can only see a small circle along the edge of the door or window where the contact is recessed into the wood. The aesthetics of the MPS95WG make it an appealing choice for homes. However, keep in mind that recessed contacts are more labor intensive than surface mount contacts. While surface mount contacts can be installed as easily as peeling off the paper from the double sided tape and affixing the contact to the door or window, recessed contacts require you to drill a hole into your door or window and into the frame. If you are not comfortable with the installation requirements of a recessed contact, you should look at the many different surface mount door and window contacts that Honeywell offers instead.
Unlike other recessed door and window contacts, the MPS95WG has a raw magnet that is not encased in plastic. The magnet is 1.18” long and has a diameter of .25”. You must install the magnet directly opposite the recessed contact. You should install the magnet into the actual door or window and you should install the MPS95WG contact into the door or window frame. There are 12” wire leads coming out of the backside of the MPS95WG recessed contact. To connect the contact to your wired alarm control panel, you simply splice your (2) conductor zone wiring to the wire leads. As the MPS95WG is a Form A, SPST, normally closed device, you must use a normally closed zone configuration when programming your alarm control panel. The internal reed switch has a contact rating of 300mA at 30VDC. When the door or window is closed, the magnet is energizing the contact and the zone is normal. If your security system is armed, and the door or window is opened, the magnet separates from the reed switch and an alarm is triggered. The Honeywell MPS95WG has a magnet spacing gap of 1.25” so make sure that when your door or window is closed, the magnet is not further than 1.25” from the contact.