ControlByWeb Application

Remotely monitor a storage unit's door and receive a notification if the door is opened. No wiring necessary!


Wirelessly monitor the open status of a storage unit's door with the XW-111 (for storage facilities with an available Wi-Fi network).

Configure the XW-111 to monitor the state of a magnetic contact sensor attached to a storage unit's door. Send email/text notifications to you or your customer's cell phone when a storage unit door is open.

The XW-111 requires no wiring and can be run on two AA batteries for low-power applications such as this.


  • Works on Wi-Fi
  • Battery or AC line powered
  • Remote sensor monitoring
  • Email/text alerts
  • Remote relay control (for audio or visual alarm)
  • No wiring necessary
Wirelessly monitor storage doors. Receive text/email alerts if door is opened.

With its built-in web server, the XW-111 monitors the status of a magnetic door sensor.

*The above illustration is for demonstration purposes only, it does not represent actual wiring.

Wireless Door Sensor Monitoring

In this example, the XW-111 is mounted on the inside of the storage unit. It is then wired to a magnetic contact sensor that is attached to the storage unit's door.

Text/Email Temperature Alerts

The XW-111 wakes up whenever the door sensor's break contact, which then triggers the XW-111 to send an email/text notification.

Audio/Visual Alarms

In addition to the email/text alert, you can also configure the XW-111 to trigger an audio or visual alarm (i.e., an alarm light) located in a remote location.

No Cloud Services or Monthly Fees

ControlByWeb products are stand-alone, independent devices. There are no monthly fees, and no additional software to install.

You can also use our free, CBW-Mobile app to access, control, and monitor ControlByWeb devices on one central control panel.

BEST PRODUCTS for Wireless Door Sensor Monitoring

Wireless Digital Input Monitor

XW-111 | Wireless Digital Input Monitor

Monitor the open/close status of a digital sensor. Ideal for basic door status monitoring for a storage unit or other facilities where a WiFi network is available.


Connects directly to Wi-Fi network

Battery or AC line powered

Battery power for low-power applications

2 Digital Inputs

Monitor a magnetic contact sensor

Special Features

Email and text alerts - Remote relay control for audio/visual alarms

X-600M Web-Enabled I/O Controller

X-600M | Web-Enabled I/O Controller

Use the X-600M to monitor multiple XW-111 units. The X-600M can perform logical actions based off of a door sensor status.

Controls and monitors up to 1,024 I/O points

Examples: Use XW-111 units for door status monitoring, then use the X-600M to control audio alarms, visual alarms, electrical locks, gate motor control, etc.

Special Features

Email and text alerts - Remote relay control with scheduling logic (e.g., If after 10PM, if any XW-111 units senses a door open, send an email/text to the property managers, sound an audio alarm, and turn on security flood lights.

All Applications