Wireless Temperature Sensor | XW-110
5 Year Warranty

Measure and report from this precision Wi-Fi temperature sensor. Use as a stand-alone or slave device.


The XW-110 is an easy-to-use wireless temperature sensor with a built-in web server. It measures environmental temperature using an internal sensor (included), or you can attach an external temperature probe (optional) for precise measurement outside of the unit. Users can view current temperature using a web browser, smartphone app, or the XW-110 can send temperature information via email. The XW-110 can be easily and quickly mounted to a wall or any other workable surface.

Temperature Logging

The XW-110 Plus model, allows you to periodically log temperature data. The temperature data is stored internally , and can be sent daily via email. The XW-110 Plus is an ideal solution for maintaining compliance with FDA requirements to maintain food temperatures in coolers and freezers. No more manually logging temperature data by hand!

Power Failure Notification

The XW-110 Plus can be configured to send out email/text notifications in the event of a power loss. This feature requires good batteries to be installed in the XW-110 Plus, and backup power must also be provided to the local network that provides internet connectivity, such as a wireless access point.

Cost Effective

There is no special software to download, no drivers to install, and no monthly subscription. Using the XW-110 is just as easy to monitor whether you are in the field, in the office, or on vacation. It is the ultimate solution to your wireless temperature monitoring needs!


1. Stand-Alone Mode

This mode makes the XW-110 a self-contained device that requires no additional servers or ControlByWeb devices. While in Stand-Alone mode the XW-110 products can provide live, real-time temperatures status directly to users through web browsers or the CBW Mobile app.

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

In Stand-Alone mode, the XW-110 & XW-110 Plus:

  • Connects directly to Wi-Fi network - No gateway devices required
  • Does not require any cloud servers
  • Supports encrypted and un-encrypted email servers for sending temperature alerts
XW-110 in Stand-Alone mode
Additional Stand-Alone Mode Features:
  View Real-Time Temperatures

Use the XW-110's built-in control page to view real-time temperatures.

  • AC adapter for main power and batteries for backup
  • Static IP address and port forwarding required
  Email Alerts During Alarm Conditions

Send emails/texts for high/low temperature alerts.

  • Battery or AC adapter for main power
  • DHCP or static IP address (no static IP address required)
  • No port forwarding required
  Control Relays in Remote Locations

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

  • Battery or AC adapter for main power
  • Control remote relays on other ControlByWeb products

2. Slave Mode (Available on XW-110B model only)

This mode is used for measuring and reporting the temperature to other ControlByWeb devices. While in Slave mode the XW-110's web interface is not directly accessible to the user, instead temperature status is simply transmitted to another ControlByWeb device that supports temperature monitoring, such as the X-600M controller, which acts as a "master" device. The master device uses the XW-110's temperature information as it would use information collected by any other sensor.

XW-110 in Stand-Alone mode

Note on power: The XW-110 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.

In Slave mode, the XW-110:

  Provides Temperature Information to Other ControlByWeb Devices

Acts as a wireless sensor 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


Temperature Monitoring

Wireless Temp Sensor Applications

Because the XW-110 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:

  • Refrigeration/Freezer systems
  • Commercial properties
  • Water treatment plants
  • Chemical plants
  • Pharmacies
  • Laboratories
  • Greenhouses
  • Weather stations
  • Attics
  • Wine cellars
  • Server rooms
  • Cold storage rooms
  • Storage facilities
  • and much more

Once connected to the network, you can access the temperature sensor's setup and control pages on a web browser where you can adjust the settings, or view the current temperature on the XW-110's control page. The web interface is extremely easy-to-use, and can be viewed on the XW-110 Demo Page.


XW-110 Setup Using DHCP

XW-110 Setup Using DHCP & High/Low Email Alerts

In this video you will learn how to access the XW-110's setup pages, how to set it up on a network using DHCP, and how to configure it to send email alerts if the temperature exceeds a certain threshold. View ❯

XW-110 installation for monitoring walk-in freezers

XW-110 Installation for Walk-in Freezers

In this video you will learn how to physically install the XW-110 with an external temperature sensor to wirelessly monitor a walk-in freezer. View ❯


  • Monitor one or up to three temperature sensors (XW-110 Plus)
  • Wireless Wi-Fi 802.11 b/g/n
  • Wi-Fi transmission range up to 250ft*
  • Temperature logging (data sent via daily email) (XW-110 Plus only)
  • AC Power Failure Notification (XW-110 Plus only)
  • No sensor calibration needed
  • Small data packets provide long battery life
  • Built-in web server for configuration and remote monitoring
  • Email/Text alerts for high/low temperature alerts, and low battery alerts.
  • Temperature probe range: -67°F to 257°F (-55°C to +125°C)
  • Temperature probe accuracy: ±0.5°C (from -10°C to +85°C)
  • Longer lead length air/submersible temperature probes available - Sensors are interchangeable and need no calibration
  • Temperature status can control relay on another ControlByWeb device
  • Powered by external DC power adapter or two AA batteries (battery usage for backup/low power applications only)
  • XW-110 protocols supported: HTTP, XML, SSL, SMTP, Remote Services
  • XW-110 Plus protocols supported: HTTP, XML, SSL, SMTP, Modbus TCP/IP, Remote Services, Data Logging
  • Simple and easy to use
CE listed RoHS compliant Made in the USA
XW-110 Wireless Temperature Sensor with an external sensor attached

XW-110 shown with an optional external temperature sensor.

XW-110 Part Numbers (Differences highlighted in green)

XW-110B 1 (One sensor included: Internal temp sensor) Slave mode (automatically report temperatures to another ControlByWeb device such as the X-300, X-310, or X-600M) 2AA batteries, or external 5VDC power supply
XW-110B+PS5VW1.0-2.5mm 1 (One sensor included: Internal temp sensor) Slave mode (automatically report temperatures to another ControlByWeb device such as the X-300, X-310, or X-600M) 2AA batteries, or external 5VDC power supply (5V power supply included)
XW-110P 3 (One sensor included: 1m temp sensor) Temperature logging (data sent via daily email), remote services, power-failure email alerts 2AA batteries, or external 5VDC power supply
XW-110P+PS5VW1.0-2.5mm 3 (One sensor included: 1m temp sensor) Temperature logging (data sent via daily email), remote services, power-failure email alerts 2AA batteries, or external 5VDC power supply (5V power supply included)

More Information


Where to Buy

Click "Buy Online" to view part numbers and pricing. XW-110 is available in the USA and Canada, and can be purchased either from us or an Authorized Distributor.

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