WiFi Controllers

Our new cellular monitoring and control modules make your life easier. When you need to deploy an IoT controller where no wired networking infrastructure exists, skip the third-party program hardware and build from our popular X-400 platform - now with embedded cellular connectivity. Remote monitoring and control has never been easier.

X-410 and X-401 programmable controllers
  • X-410™ | Edge Programmable Controller

    $299.99$399.99
    Simplify any industrial application with the X-410™—no code necessary. Automation is easy with its browser-based interface and intuitive drop-down menus for creating event-based and scheduled logic. Monitor dry contacts and control relays with built-in I/O. Extend functionality by adding other ControlByWeb devices with P2P communication.

    4 Relays & 4 Digital Inputs

    Up to 16 Temperature Sensors

    Ethernet, Cellular, or WiFi

    9-28VDC and/or POE

    Cellular and WiFi are Now Available. Note that X-410CW and X-410W models include cellular and WiFi capability respectively, which allows for more flexibility for your application.

    [frequentlyBought ids="7624,34491,7540,7798"]

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  • WebRelay-Quad™ | 4 Web-Controlled Relays

    $209.99$309.99
    Remotely control 4 electromechanical relays with the WebRelay-Quad™. The simple user interface and no-code logic builder makes this programmable logic controller the easiest relay control method you can find.

    4 Relays

    Ethernet, Cellular, or WiFi

    9-28VDC and/or POE

    Note that the new models run the 400 Series firmware on the same great hardware, while the original WebRelay-Quad runs the previous firmware with no cloud access, a simpler browser interface, and no programmable logic or data logging.

    [frequentlyBought ids="7624,7621,7793"]

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  • X-401™ | Dual Relay and Input Module

    $269.99$369.99
    The X-401™ has two SDPT relays (form C) and two optically isolated inputs. It also shares the same benefits as other 400 series devices, which includes a built-in web server and simple, no-code logic builder. Monitor locks and lights, reboot devices like IP cameras, control bells and alarms, and much more with the X-401.

    2 Relays & 2 Digital Inputs

    Ethernet, Cellular, or WiFi

    9-28VDC and/or POE

    Cellular and WiFi are Now Available. Note that X-401CW and X-401W models include cellular and WiFi capability respectively, which allows for more flexibility for your application.

    [frequentlyBought ids="7624,7621,7798,34091"]

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  • X-412™ | 4‐Channel Relay & Analog Input Module

    $369.99$469.99
    The X-412™ is a powerful analog-to-digital Ethernet I/O PLC. It features 4 analog inputs, 4 relays, and a built-in web server for infinite control and monitoring possibilities.

    4 Relays

    4 Analog Inputs

    New Cellular Option: The X-412CW model includes a cellular modem, compatible with our cellular data plans.
    WiFi is Now Available. The X-412CW model includes WiFi capability which allows for more flexibility and cost savings for your application.

    [frequentlyBought ids="7624,7916,34491,7781"]

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  • FridgeAlert | Temperature Monitoring With Touch Screen

    $599.99$699.99
    The FridgeAlert™ is purpose-built to monitor fridge and freezer systems. It offers smart monitoring to avoid false alarms and battery backup to continue logging temperature data while alerting of any power outages. FridgeAlert is easy to set up and features a large touchscreen display for at-a-glance information.

    The FA100C model offers wireless capability with a built-in cellular modem.
    • 3.5″ Touchscreen Display
    • Up to 10 Temperature Sensors
    • 1 Digital Input
    • Cellular version available

    [frequentlyBought ids="7540,7558,7573,7624"]

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  • WebRelay Wireless™ | Single Relay & Input Module

    $219.99
    The WebRelay Wireless™ is a WiFi-enabled electromechanical relay with a built-in web server and optically isolated digital input.

    1 Relay (12A 277VAC, 30 VDC)

    1 Digital Input (4-26 VDC)

    Up to 4 Temperature Sensors (-67°F to 257°F / -55°C to +125°C)

    [frequentlyBought ids="7624,7540,7798"]

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  • XW-110 Plus™ | Wireless Temperature Sensor

    $209.99$229.99
    The XW-110 Plus™ is a drop-in temperature sensor with a built-in web server. It’s capable of monitoring up to three 1-Wire sensors. (One 1m sensor is included.)

    1 Temperature Sensor

    WiFi-Enabled (802.11 b/g/n)

    [frequentlyBought ids="7626,7540,7577"]

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  • XW-111™ | Wireless Digital Input Monitor

    $189.99$209.99
    The XW-111™ is an easy-to-use, wireless digital input monitoring device with a built-in web server. It can sense the state of up to two switch-state closure sensors.

    2 Digital Inputs

    WiFi-Enabled (802.11 b/g/n)

    [frequentlyBought ids="7626,7798,31995"]

    VIEW PRODUCTView Product This product has multiple variants. The options may be chosen on the product page
  • XW-112™ | WiFi Water Detector

    $189.99
    The XW-112™ is a standalone water leak detector that monitors the presence of liquids, sends alarm notifications, and provides real-time sensor status via the web. Includes one GRI-2605 liquid detection sensor.

    1 Water Contact Sensor (included)

    WiFi-Enabled (802.11 b/g/n)

    VIEW PRODUCTView Product This product has multiple variants. The options may be chosen on the product page

WiFi-Enabled Micro PLCs

Remote Monitoring Made Easy

Our new WiFi-enabled monitoring and control modules make your life easier by providing you with extra networking flexibility. When you need to deploy an IoT controller where ethernet wiring would be inconvenient, choose our WiFi-Enabled I/O modules. Remote monitoring and control has never been easier.

  • The X-410W is ideal for creating remote monitoring and control systems that require WiFi connectivity and/or cloud access. With four relays and 4 digital inputs, the X-410W is the perfect solution for dozens of application. From access control to temperature monitoring, to lighting automation. it’s used in industries far and wide for stand-alone controls, as a capable RTU, or as a sophisticated edge programmable controller. It’s the ideal industrial IoT device.
  • The X-401W is perfect for simple input monitoring and relay control. This controller offers two Form-C relays, perfect for controlling low-voltage lights, motors, locks, solid-state relays (connected to larger loads), and more.
  • The FridgeAlert is purpose-built for commercial refrigeration monitoring. Whether it’s a cooler, freezer, or any temperature controlled area, you can monitoring up to 10 temperature sensors with a convenient touch screen display. This device also comes with WiFi and cellular versions to simplify networking and enable monitoring in difficult locations.

Cloud Compatible

The ControlByWeb Cloud simplifies monitoring, control, and data logging. It provides access to your controller but keeps logic on the device so you are not dependent on network connectivity. Get the best of both worlds with our reliable platform.

Photograph of an electrical technician standing in front of a switchboard. He is holding a tablet and using an app to test WiFi speeds.

Flexible

WiFi-enabled PLCs are often used when a hardwired Ethernet connection isn’t feasible. It may be impossible to pull or install wire in an existing structure, for example.

Cost-Saving

With WiFi, integrators can avoid the expense of burying a line, channeling Ethernet cables, and installing other physical components.

Easy Installation

Our WiFi-enabled PLCs can be assigned network credentials through the built-in interface. Then, all the module needs is power and you’re ready to go.

Extended I/O

WiFi capability allows PLCs to be physically distant from the rest of the system, bridging the gap between where the data is collected and where it’s utilized.

ControlByWeb® WiFi Micro PLC Features

  • Embedded WiFi connectivity
  • Email/Text alerts
  • Control relays based on preset thresholds
  • Custom Logic – No programming required
  • Built-in web server
  • Configurable control and status web page
  • Modbus/TCP support
  • XML formatted status
  • Password protected
  • Rugged, DIN rail or wall mount enclosure
  • Power supply options: 9-28 VDC
  • Configurable control and status web page
  • Modbus/TCP support
  • XML formatted status
  • Password protected
  • Rugged, DIN rail or wall mount enclosure
  • Power supply options: 9-28 VDC
FridgeAlert Freezer Monitoring Example Diagram
An illustration of a ControlByWeb relay monitoring temperature of a freezer and refrigerator. The FridgeAlert includes a touchscreen display that shows current temperature of each sensor and other at-a-glance information.

Industrial refrigerators and freezers house thousands of dollars in perishable goods. Even a short fluctuation in temperature caused by fan failure, an unsealed door, or a power outage may be enough to spoil the contents. A restaurant manager’s whole week could be ruined by one faulty cooler—and it isn’t just the food and beverage industry that utilizes cold storage. Most vaccines, certain chemicals, and even mylar film prints require careful temperature control.

WiFi-enabled PLCs allow for precise, wireless monitoring of refrigeration units. They can measure ambient temperature, track how long walk-in doors are left open, verify that fans are operating, and send timely notifications when temperatures fluctuate too far from the accepted threshold for too long.

The ControlByWeb PLC featured in this application is the purpose-built Fridge-Alert™, but other WiFi-enabled PLCs like the X-410W™ offer a flexible temperature-monitoring solution.

Frequently Asked Questions

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