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Receive an Automatic Notifcation or Control Lights the Moment a Door Opens or Closes
INSTEON Hidden Door Sensor
INSTEON Hidden Door Sensor
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How it Works Features Dimensions
INSTEON Hidden Door Sensor
Item# 2845-222
Price: $34.99
Free shipping on orders over $175 - See Details


  • Automatically control lights and appliances when doors open and close
  • Wireless up to 150 feet
  • Battery-operated, no wires or professional installation required
  • Long-lasting contact plunger ensures reliable operation for years and years
  • Flush collar with retention screw for a clean, secure mount
  • Award-winning INSTEON technology provides superior performance and reliability

Essential Info

Hidden Sensor - Invisible Assurance

Peace of mind - that's what Hidden Door Sensor brings to your home. With Hidden Door Sensor and the INSTEON Hub, you will always know whether the front door has been opened or if you forgot to close the door to the garage. Hidden Door Sensor installs inside the door or door frame, reporting door activity wirelessly to your INSTEON home.

Now You See It, Now You Don't

Nothing makes your home smarter than adding sensors; but even our unobtrusive INSTEON Open/Close Sensor can be too large for certain d├ęcors and locations. That's why we've created the Hidden Door Sensor. Instead of mounting to the surface of your door, Hidden Door Sensor is installed inside the door frame or even the door itself. The result is a completely hidden sensor that stays out of the way, monitoring doors without the slightest visual impediment.

Installation - Power Tool Time

Using a 3/4" drill bit, simply drill a hole into your door frame along the hinge-side of your door. After cleaning out the hole of any wood shavings, simply slide Hidden Door Sensor in and secure it with the included screw. And in the event that there is a substantial gap between your door and the frame, we've included a spacer to ensure that your sensor will activate every time your door is opened or closed. Need a drill bit? Try the IRWIN SPEEDBOR Max Auger Bit, 3/4-Inch or the IRWIN SPEEDBOR Spade Bit, 3/4-Inch.

Got Metal? - Equal Opportunity Installation

Wood doors are easy; almost every home owner has the tools necessary to drill through a wooden door frame or door. But what if your door or door frame is made of metal? Hidden Door Sensor is just as easy to install in the door itself along the hinge-side of the door. If both your door and door frame are metal, we suggest using INSTEON Open/Close Sensor instead.

Windows? - Supports Some Window Styles

While Hidden Door Sensor works best with doors, it is possible to install with casement windows. Because the sash of most windows will be too narrow for Hidden Door Sensor, we suggest using the window frame exclusively. And if you have modern vinyl windows with sophisticated moisture barriers behind the frame, it's probably best to use INSTEON Open/Close Sensor instead. No one wants to trade a hidden sensor for a leaky window.

Required Accessories
For the best INSTEON network performance, be sure you have properly installed at least two Access Points or other dual-band products.

Note: Open/Close Sensor does not transmit X10-compatible RF signals.


What's Included

  • 1x - Sensor
  • 1x - AAA battery
  • 1x - Screw
  • 1x - Spacer
  • 1x - Quick Start Reference Card
  • More Info


    General Specifications
    Manufacturer Product No.2845-222
    Patent / CopyrightProtected under US and Foreign Patents
    Warranty2 years, limited
    Operation Specifications
    Audio AlertBeeper, can be disabled through software
    Operational GapUp to 0.2" (5.4mm)
    Setup MemoryNon-volatile EEPROM
    Status LEDRed/Green LED
    INSTEON Specifications
    INSTEON Addresses1
    INSTEON Device Category0x10
    INSTEON Device Subcategory0x11
    INSTEON links307
    INSTEON Messages RepeatedNo
    INSTEON Powerline DeviceNo
    INSTEON RF DeviceYes
    Maximum Controlled Scenes2, 1 by default
    Phase Detect BeaconNo, RF-Only Device
    Radio Frequency915.0 MHz
    Radio Frequency Range150 feet
    Scene Commands Supported as ControllerOn, Off
    Scene Commands Supported as ResponderNone
    Software ConfigurableYes
    Mechanical Specifications
    Dimensions0.69" Diameter x 3.4" Length (15.9mm Diameter x 87mm Length)
    Hole Dimensions0.75" Diameter x 4" Deep (19mm Diameter x 100mm Deep)
    Operating EnvironmentIndoors
    Operating Temperature Range-40-104° F (-40-40° C)
    Operating Humidity Range0%-90% relative humidity, non-condensing
    Weight0.64 oz (20 g)
    Electrical Specifications
    Battery TypeAAA
    Battery Life6 months
    CertificationFCC, IC, C-Tick, CE
    Power Consumption60uA
    Supply Voltage1.5V DC (AAA Battery)
    X10 (Powerline Only) Specifications
    X10 SupportNone


    How it Works  Features  Dimensions   
    How it Works  Features  Dimensions   


    42 Ratings
    5 star: 67%  (28)
    4 star: 24%  (10)
    3 star: 5%  (2)
    2 star: 0%  (0)
    1 star: 5%  (2)
    Average Customer Rating
    (42 customer ratings)
    Share your thoughts with other customers
    LEONARD -- saratoga, CA   7/5/2014
    Works great so far.
    SCOTT -- menifee, CA   7/3/2014
    Easily installed (at least in wooden door frames; haven't got a metal one to try). Functions properly and is supported on newest software (as of June 2014) on UDI's ISY series controllers. I gave four stars only because I don't know battery life, yet.
    LARRY -- north port, FL   6/27/2014
    Super product. I have several of these and they all work great. Way better than mounting magnetic sensors on the door and jam. Installation is fairly easy. A butterfly drill bit works fine for the hole. Be sure to center the drill on the door jam and be aware of any electrical wiring that might be behind it since the hole has to be fairly deep. Also be sure to drill nice and straight or you might drill through the wall board. Out of sight and work well. Battery life seems to be good so far. Only thing is I wish they would ping the current state a couple of times per day.
    RON -- redmond, WA   6/7/2014
    Unlike my experience with the motion sensor, this device functions as advertised and offers a novel alternative to a visible sensor. Installation was straightforward and simple to accomplish.
    MARCELO -- sao paulo, XX   5/21/2014
    great idea, easy to install an configure
    Disappointed -- Texas   5/12/2014
    Easy to install, easy to link to Insteon responders, works reliably. However, the documentation states in several places that it can be used to turn on lights when the door is opened and NOT turn off when the door is closed. This is a critical feature and according to Insteon technical support it is not now available. Apparently, this is a software feature to be available sometime in the future, I hope! This is unacceptable for my purpose and I would not have bought them.
    GUY -- linden, MI   4/26/2014
    easy to install and work wonderfully, except with HL2.. all events appear doubled. makes creating any event driven actions a mess.
    GUY -- linden, MI   4/19/2014
    easy installation. unfortunately with houselinc 2 all events are shown in the log twice. makes it impossible to use in any but the simplest of programmed events (you don't want events to trigger twice).
    VINCE -- san dimas, CA   4/17/2014
    It would have been nice to know in advance that it is not compatible with the ISY 991. had to return it. No problem though.

    Smarthome response:According to UDI forums, version 4.1.0 recognizes the unit.
    Bill McGNH -- orlando, FL   3/28/2014
    Great product. Very easy to install and configure. My mother-in-law is becoming more forgetful. My wife worries that mom will wander from her bedroom when she comes to visit. I just installed one of these on the guest room door and we activate it we use Indigio software when she comes to visit so that door will triggerthe master bedroom table lamps when she opens her bedroom door. It's a little bit of a pain when she gets up to use the bathroom in the middle of the night but it provides my wife with peace of mind knowing that her mom isn't stumbling down the stairs in the middle of the night. Well hidden once installed--has a lot of neat uses.
    PETER -- beaverton, OR   3/24/2014
    Works as advertised.
    CHASE -- vista, CA   3/19/2014
    working very well and as expected
    MARCELO -- sao paulo, XX   3/2/2014
    Great IDEA. configured to start some programs in my ISY. Easy to install in the door and also to configure it within ISY. You must know that battery insteon devices cannot be reached if in standby mode, so you have to "turn it on" before sending command of configuring scenes.
    Alan G. -- Monroe La   2/17/2014
    Excellent product. The device works great. Battery life is unknown, but most of the Insteon battery devices perform quite well. It will depend on how many times the door is opened. My wife hates the way all my gadgets look, not cute and fashionable. These sensors are virtually invisible and she has not been able to find them even after she was told that they exist. She is still looking for a motion sensor somewhere.
    MIKE -- pittsboro, NC   2/10/2014
    replace another system and like the fact these are hidden. so far all my insteon products work as advertised.
    RYAN -- austin, TX   2/6/2014
    Was hard to link to ISY. When linked to non-dualband there is a delay sometimes. Awesome design though.
    MICHAEL -- front royal, VA   1/23/2014
    These are really nice and I think it will replace the old magnet sensor, really nice not having a device hanging on the door.
    Matt -- Santa Ana   1/20/2014
    This thing is awesome. I have this on my back door, which is right off the dining room. It's so nice to have the sensor hidden inside the frame, instead of having a magnetic sensor stuck to the door in an area where I entertain people. Overall, very easy install and the hole is not as large as you'd think.
    JASON -- chula vista, CA   1/15/2014
    Works perfectly every time.
    TIMOTHY -- baltic, CT   1/13/2014
    Works great as a Trigger in Perceptive Automation's Indigo Software.


    IRWIN 3041004 SPEEDBOR Max Speed Wood Drill Bit, 3/4-Inch  IRWIN 88812 SPEEDBOR Wood Spade Drill Bit, 3/4-Inch  Sony Alkaline AAA batteries   
    IRWIN 3041004 SPEEDBOR Max Speed Wood Drill Bit, 3/4-Inch  IRWIN 88812 SPEEDBOR Wood Spade Drill Bit, 3/4-Inch  Sony Alkaline AAA batteries   

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