Web-Enabled Drop-In Solutions for Remote Monitoring & Control

Remote Relay Control

Our Ethernet I/O products provide an easy and reliable way to monitor and control electric devices over a network.

Every product is designed for simplicity and rock-solid performance, making remote relay control straight-forward and dependable.

Built-in web servers, allow access by a standard web-browser. There is no special software or app required, no drivers to install, and no monthly subscription.

Industrial Automation

Use Modbus/TCP to easily integrate into SCADA and industrial automation systems or use as single, stand-alone devices; right out of the box.

Link them up in in pairs (peer-to-peer) over IP networks without using an external controller.

Data Acquisition & Remote Monitoring

Use these products as Modbus/TCP cards to expand your SCADA system. Easily read status of digital inputs, temperature, etc. and control digital outputs using standard Modbus commands!

It is simple to use the builtin web-server to remotely monitor and control, even without using SCADA.

Mobile App

CBW Mobile, the iPhone and Android app that integrates with ControlByWeb's Ethernet I/0 products. It allows you to control and access Ethernet controlled relays, digital inputs, analog inputs, temperature and humidity sensors, and much more.

Best of all, no fees and no subscription! Try it out now!

Web Relays

WebRelay™ | Single Relay & Input Module

WebRelay is an electrical relay with a built-in web server. The relay can be turned on, off, or pulsed using a web browser. It has a long history of reliable operation in many applications including
    remote reboot
  • industrial control
  • security
  • and remote control and monitoring
    • Features:
      • No programming required
      • Full control using a standard web browser or text-based XML messages
      • Can operate as a Modbus/TCP slave
      • Password protected
      • 12A relay contacts
      • ON/OFF or Pulsed relay modes
      • Optically-isolated input uses:
        • Monitoring
        • Relay control
        • Remote relay control (peer-to-peer)
      • Auto-Reboot controller mode for remote reboot of network devices
      • Selectable TCP ports
      • Removable terminal connectors included
      • DIN rail or wall-mount
      • Power supply options:
        • 9-28VDC
        • POE and/or 9-28VDC

WebRelay Wireless™ | Single Relay, Single Input, Up to 4 Temperature Sensors

The WebRelay Wireless™ is an easy to use Wi-Fi enabled relay, temperature/humidity monitor and status alerting device.

Built-in relay for controlling lights, motors and other relatively high current loads, a digital input to monitor and report the status of switch-closure sensors and a “1-Wire” port for connecting up to four digital temperature/humidity 1-Wire sensors.

  • Built-in high current relay
  • Optically-isolated digital input
  • Up to 4 temperature sensors
  • Wireless Wi-Fi 802.11 b/g/n
  • Antenna included
  • Transmission range up to 250ft
  • Logging of the input, counter, temperature, humidity, relay state, and Vin
  • BASIC script support for advanced flexibility
  • Customizable web-based Control Page
  • Send email alerts (up to 8 email addresses) based on user-defined conditions
  • Supports encrypted email servers, such as Gmail
  • Static or DHCP IP address configuration
  • Real-Time clock with NTP server synchronization
  • Automatic daylight savings and leap year adjustment
  • No software required
  • XML, Modbus/TCP and Remote Services
  • Field updatable
  • Removable terminal connectors for easy installation

X-400 Series of Advanced Controllers

X-400 Series

  • Task Builder: Easily create custom logic, no scripting neccessary.
  • P2P COMMUNICATION: Share real-time sensor states with other ControlByWeb devices.
  • Email/Text Alerts: Customizable email/text alerts based on sensor states.
  • On-Device Logic: All logic occurs on device, no cloud necessary.
  • Web-Enabled: Monitor sensor status using a standard web browser.
  • Logging/Graphing: Log and graph sensor states over time.
  • Encryption
  • Standard Modbus TCP

Learn about the full range Learn More