Add $50.00 for FREE shipping
Up to 20% Off Insteon Starter Kits!Free Shipping On Orders $50 And Up
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)
Other Ways to Shop
In Stock
Order the Smarthome Catalog

Receive an Automatic Notifcation or Control Lights the Moment a Door Opens or Closes
INSTEON Hidden Door Sensor (Europe 869 MHz)
INSTEON Hidden Door Sensor (Europe 869 MHz)
Click for larger image and other views
How it Works Features Dimensions
INSTEON Hidden Door Sensor (Europe 869 MHz)
Item# 2845-422
Price: $45.49
Free shipping on orders over $50 - See Details


  • Automatically control lights and appliances when doors open and close
  • Wireless up to 45 meters
  • 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 décors 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 19mm" 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 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.2845-422
    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 Subcategory0x14
    INSTEON links30
    INSTEON Messages RepeatedNo
    INSTEON Powerline DeviceNo
    INSTEON RF DeviceYes
    Maximum Controlled Scenes2, 1 by default
    Phase Detect BeaconNo, RF-Only Device
    Radio Frequency869.85 MHz
    Radio Frequency Range45 meters
    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
    Power Consumption60uA
    Supply Voltage1.5V DC (AAA Battery)
    X10 (Powerline Only) Specifications
    X10 SupportNone


    How it Works  Features  Dimensions   
    How it Works  Features  Dimensions   


    2 Ratings
    5 star: 50%  (1)
    4 star: 50%  (1)
    3 star: 0%  (0)
    2 star: 0%  (0)
    1 star: 0%  (0)
    Average Customer Rating
    (2 customer ratings)
    Share your thoughts with other customers
    JULEN -- palencia, XX   12/2/2013
    Good product, it´s very good for home security.
    JEROEN -- veen, AE   12/2/2013


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

    Related Items

    Customers Also Bought

    Sign-up for Exclusive Email offers 
    How to Order Track Your Package Shipping Returns Contact Us Customer Service Retail Store
    Getting Started Learning Center FAQ Dealers Customer Testimonials Affiliate Program
    About Us INSTEON Press Awards Employment Guarantees Security & Privacy
    Free Catalog Email Newsletter Forum RSS Site Map
    Have questions? Call us at 800-762-7846 (Mon-Fri 5am-7pm and Sat 6am-3pm PT) or send us a message
    Place your order by 3pm PT for same day shipping
    Copyright 1995-2014 SMARTHOME™
    Verisign Secure Site PayPal Acceptance Mark