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Sensor Type
Contact Closure
Contact Closure Sensors
Door / Window
Garage Door
Contact Closure / Relay
2-Way Communication
Advanced Automation Support
Auto-Shut Off
Battery Operated
Contact Closure Input / Output
Door Mounted
# of Channels
1 Channel
# of Buttons
1 Button
Ease of Installation
Beginner (Installs < 10 minutes)
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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   


    25 Ratings
    5 star: 64%  (16)
    4 star: 28%  (7)
    3 star: 4%  (1)
    2 star: 0%  (0)
    1 star: 4%  (1)
    Average Customer Rating
    (25 customer ratings)
    Share your thoughts with other customers
    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.
    PATRICK -- fenton, MI   1/3/2014
    Product works great only problem I encountered is loss of connection to my hub caused me to have to remove product from door frame and re - link plus no support for my ISY yet. Try installing inside of dead bolt cavity to monitor if your dead bolt is locked or unlocked. You can get washers to adjust to the perfect depth. Since there is no reporting deadbolt for Insteon just yet.
    THOMAS -- carlisle, MA   12/30/2013
    works fine. But cost is high.
    Bob -- washington, DC   12/25/2013
    Great product. Installed well and works great as long as you buy the more expensive drill bit and make sure you have the latest firmware upgrade. I set it to turn on the front hall lights when the front door opens between certain times. Works so well I may buy more.
    James Hale -- kansas city, MO   12/16/2013
    I saw this an immediately thought of my closet. I bought one and am extremely happy with it. I'm a little leary that it runs on a battery and that I may have to replace it often, but it doesn't appear to use much power when it operates, so I'll update this when I find out how long it works. Extremely easy to program and install. One change to the installation though... I would NOT recommend a paddle bit to drill the hole in the door frame because most door frames are not solid all the way through. My paddle caught the sheet rock and slid sideways. I would recommend a smooth, screw-type drill bit to make the hole. Aside from that, it's works great! I coupled this with an Insteon LED bulb. Seems to be the best combination.


    INSTEON Access Point (& Wireless Phase Coupler)  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 
    INSTEON Access Point (& Wireless Phase Coupler)  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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