Wireless Digital Input Monitor | XW-111
5 Year Warranty

Measure and report a device's status using a digital input from this precision Wi-Fi digital input monitor. Use as a stand-alone or slave device.


The XW-111 is an easy-to-use, wireless digital input monitoring device with a built-in web server. The XW-111 monitors and reports the status of switch closure sensors and alarms. It's ideal for applications where a device's status must be monitored and Ethernet wiring is not accessible or practical to install.

The XW-111 can sense the state of up to two switch-closure sensors, such as: push buttons, magnetic door alarm switches, micro-switches, or any device which has a relay or switch closure output. The XW-111 can be configured for the alarm to be active when the switch is either open or closed.

The XW-111 can run in one of two modes of operation:

Stand-Alone Mode

This mode makes the XW-111 a self-contained device that requires no additional servers or ControlByWeb devices. While in Stand-Alone mode the XW-111 products can provide live, real-time input status directly to users through web browsers or the CBW Mobile app.

XW-111 in Stand-Alone mode

In addition, Stand-Alone mode offers the ability to simply monitor input status and send out email alerts (which can be converted to text message alerts) either periodically or whenever an alarm condition occurs.

Stand-Alone Mode Configuration Options

  View Real-Time Input Status

Example: Use the XW-111's built in web pages to view real-time input status.

  • Connects directly to Wi-Fi network - no gateway devices required
  • AC adapter for main power and batteries for backup
  • No cloud server required
  Email Alerts During Alarm Conditions

Example: Send emails for on/off sensor status.

  • Connects directly to Wi-Fi network - no gateway devices required
  • Battery or AC adapter powered
  • DHCP or static IP address (no static IP address required)
  • No cloud server required
  • No port forwarding required
  • Supports encrypted and un-encrypted email servers
  Control Relays in Remote Locations

Example: Control the relays on other ControlByWeb devices to turn on lights, bells, alerts, etc.

  • Connects directly to Wi-Fi network - no gateway devices required
  • Battery or AC adapter powered
  • Control remote relays on other ControlByWeb products

Slave Mode

This mode is used for measuring and reporting an input status to other ControlByWeb devices. While in Slave mode the XW-111's web interface is not directly accessible to the user, instead input status is simply transmitted to another ControlByWeb device that supports input status monitoring, such as the X-600M controller, which acts as a "master" device. The master device uses the XW-111's input status information as it would use information collected by any other input.

XW-111 in Slave mode

Note on power: The XW-111 is powered by an external 5VDC wall transformer, or by two internal AA batteries. Only use batteries to provide backup power, or for modes where the web server is not being used. Some configurations consume more power than others which can make battery operation unpractical. Having more features enabled and/or increased sampling frequencies lead to lower battery life.

Slave Mode Configuration Options

  Provide Input Information to Other ControlByWeb Devices

Example: Acts as a wireless input for other ControlByWeb products, such as: X-600M, X-300, or X-310.

  • Connects to Wi-Fi network
  • Use as wireless sensor for other ControlByWeb devices
  • Battery powered for limited number of transmissions or AC adapter powered for more frequent transmissions


Wireless Input Monitoring

Wi-Fi Digital Input Applications

Because the XW-111 can be used as a stand-alone or slave device, it excels in wide variety of applications where it can be used as a drop-in solution where hard wiring isn't practical or convenient. Some example applications include:

  • Door Open/Close
  • Window Open/Close
  • Motor On/Off
  • Water/Leak Detector
  • Mechanical Switch/Push-Button
  • Loop Detector

Once connected to the network, you can access the input's setup and control pages on a web browser where you can adjust the settings, or view the current input status on the XW-111's control page. The web interface is extremely easy-to-use, and can be viewed on the XW-111 Demo Page.

Cost Effective

There is no special software to download, no drivers to install, and no monthly subscription. Monitoring inputs with the XW-111 is easy whether you are in the field, in the office, or on vacation. It is the ultimate solution to your wireless digital input monitoring needs!


  • Wireless Wi-Fi 802.11 b/g/n
  • Wi-Fi transmission range up to 250ft*
  • Small data packets provide long battery life
  • Built-in web server for configuration and remote monitoring
  • Email/Text alerts for digital input status, and low battery alerts.
  • Connect a variety of switch-closure sensors
  • Powered by external DC power adapter or two AA batteries (battery usage for backup/low power applications only)
  • Each input status can control a relay on another ControlByWeb device
  • Simple and easy to use
RoHS compliant Made in the USA

XW-111 Part Numbers (Differences highlighted in green)

XW-111B+PS5VW1.0-2.5mm N/A Digital: 2 (0-3.3VDC) 5VDC ±10% (5V power supply included)
XW-111B N/A Digital: 2 (0-3.3VDC) 5VDC ±10%

More Information


Where to Buy

Click "Buy Online" to view part numbers and pricing. XW-111 is available in the USA and Canada, and can be purchased either from us or an Authorized Distributor.

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