-
X-410™ | Edge Programmable Controller
$299.99 – $399.99Price range: $299.99 through $399.99The X-410™ is a versatile industrial I/O controller with four relays, four digital inputs, and one temperature input, designed for reliable edge control. Its built-in web server allows for efficient deployment and its embedded GUI logic builder enable event-driven or scheduled automation without external software or licensing fees.
Through peer-to-peer communication, the X-410™ can seamlessly expand with other ControlByWeb® devices, making it an efficient choice for system integrators and OEMs who need scalable, protocol-ready control in demanding environments.- 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.
Global Cellular Coverage. Discuss international cellular options with a sales engineer.
[frequentlyBought ids="7624,34491,7540,7798"]
-
WebRelay™ | Single Relay & Input Module
$189.99 – $289.99Price range: $189.99 through $289.99The latest WebRelay™ is engineered for industrial reliability and flexible deployment. With updated firmware and optional Wi-Fi or cellular connectivity, it delivers robust remote relay control at the edge of your system.
A streamlined browser-based interface and open REST API provide seamless integration with PLCs, SCADA platforms, and IIoT applications—without licensing fees or vendor lock-in. Whether deployed as a stand-alone controller or part of a larger automation network, WebRelay™ offers dependable performance in commercial, industrial, and OEM environments. Note: This is the updated WebRelay. See the original WebRelay here.- 1 Relay & 1 Digital Input
- Ethernet, Cellular, or WiFi
- 9-28VDC and/or POE
Cellular and WiFi are Now Available. Note that X-WR-441CW and X-WR-441W models include cellular and WiFi capability respectively, which allows for more flexibility for your application.
Global Cellular Coverage. Discuss international cellular options with a sales engineer.
[frequentlyBought ids="7624,7621,7798,34091"]
-
WebRelay-Quad™ | 4 Web-Controlled Relays
$209.99 – $309.99Price range: $209.99 through $309.99The WebRelay-Quad streamlines relay control with powerful yet accessible options, including a conditional and scheduled logic builder with intuitive drop-down menus, seamless open API integration via your own software, or communication using industrial protocols like MQTT and Modbus TCP/IP. Note: This is the new WebRelay-Quad. See the original WebRelay-Quad here. - 4 Relays
- Ethernet, Cellular, or WiFi
- 9-28VDC and/or POE
Cellular and WiFi are Now Available. Note that X-WR-444CW and X-WR-444W models include cellular and WiFi capability respectively, which allows for more flexibility for your application.
Global Cellular Coverage. Discuss international cellular options with a sales engineer.
[frequentlyBought ids="7624,7621,7793"]
-
X-401™ | Dual Relay and Input Module
$269.99 – $369.99Price range: $269.99 through $369.99The X-401™ combines two SPDT (Form C) relays with two optically isolated inputs in a compact, industrial-grade module. As part of the 400 Series, it features a browser-based interface, embedded GUI logic builder, and open protocols (Modbus, MQTT, SNMP, REST) for seamless integration with SCADA, PLC, and IIoT systems.
Ideal for applications such as process monitoring, equipment reboot, and alarm control, the X-401™ provides a reliable edge-control solution that eliminates licensing fees and reduces integration complexity.- 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.
Global Cellular Coverage. Discuss international cellular options with a sales engineer.
[frequentlyBought ids="7624,7621,7798,34091"]
-
Original WebRelay™ | Single Relay & Input Module
$169.99 – $199.99Price range: $169.99 through $199.99The original WebRelay™ offers exactly what its name suggests, a web-controlled relay with a simple browser-based GUI. It is an electromechanical relay featuring a built-in web server and optically isolated input that can be used to monitor dry contacts or control industrial and commercial equipment. 1 Relay
1 Digital Input
Note: This is the original WebRelay. See the new WebRelay with the latest 400 series firmware.[frequentlyBought ids="7624,7621,7798,34091"]
-
Original WebRelay-Quad™ | 4 Relay Module
$189.99 – $219.99Price range: $189.99 through $219.99Remotely 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
Note: This is the original WebRelay. See the new WebRelay-Quad with the latest 400 series firmware.[frequentlyBought ids="7624,7621,7793"]
-
X-412™ | 4‐Channel Relay & Analog Input Module
$369.99 – $469.99Price range: $369.99 through $469.99The X-412™ is an Ethernet-based I/O controller with four high-resolution analog inputs and four relays, engineered for precise monitoring in industrial and OEM applications. Its browser-based interface and embedded GUI logic builder enable event-driven automation, scheduling, and data acquisition—without external software or licensing fees.
Functions as a stand-alone monitoring device with support for open protocols (Modbus, MQTT, SNMP, REST), the X-412™ integrates seamlessly into SCADA and PLC systems, providing a reliable and scalable solution for process monitoring, equipment control, and facility automation.- 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.
Global Cellular Coverage. Discuss international cellular options with a sales engineer.[frequentlyBought ids="7624,7916,34491,7781"]
-
X-432™ | Advanced I/O Controller
$629.99The X-432™ is a standalone, Ethernet-based controller with 38 onboard I/O points, designed for demanding industrial and OEM applications. Its browser-based interface and embedded GUI logic builder allow engineers to configure complex event-driven automation, scheduling, and monitoring tasks—without external software or recurring licensing fees.
Supporting open protocols including Modbus, MQTT, SNMP, and REST, the X-432™ integrates seamlessly into SCADA and PLC systems. With both local and remote control capabilities, it delivers scalable performance for applications requiring reliable, high-density I/O at the edge.- 16 Relays
- 18 Digital Inputs
- 4 Analog Inputs
- Up to 16 Temperature Sensors
[frequentlyBought ids="7621,34491,7540,7798"]
-
X-400™ | Modular I/O Controller
$299.99 – $399.99Price range: $299.99 through $399.99TThe X-400™ is a scalable Ethernet-based controller that supports up to 32 local expansion modules or remote ControlByWeb® devices through peer-to-peer communication, enabling systems with up to 64 I/O points. Its browser-based interface and embedded GUI logic builder provide event-driven automation for powerful turn-key solutions and seamless integration with SCADA and PLC platforms—without licensing fees.
X-400C™ – Cellular-Enabled Model
The X-400C™ adds a built-in cellular modem, extending the same modular control and integration capabilities to remote or distributed applications.
- Expandable, Up to 64 I/O
- Relays, Analog & Digital Inputs
- Up to 16 temp sensors
- Cellular version available
Global Cellular Coverage. Discuss international cellular options with a sales engineer.
[frequentlyBought ids="7635,34491,7624,7577"]
-
X-600M™ | Web-Enabled I/O Controller
$549.99The X-600M™ is ControlByWeb’s most advanced controller, built for large-scale industrial and OEM applications. Supporting up to 64 expansion modules and 1,024 I/O points, it’s engineered for high-density, complex systems.
With an embedded logic builder, LUA scripting for advanced control, and support for multiple customizable dashboards, the X-600M™ gives engineers powerful tools for automation and visualization. Open protocol support (Modbus, SNMP, peer-to-peer) ensures seamless integration with SCADA and PLC systems, delivered without licensing fees or proprietary lock-in.- Expandable, Up to 1,024 I/O
- Relays, Analog/Digital/Thermocouple Inputs
- Up to 32 Temperature Sensors
- GUI Dashboard
[frequentlyBought ids="7635,7621,7318,7289"]
-
X-404™ | Modbus RS-485 Module
$399.99 – $499.99Price range: $399.99 through $499.99The X-404™ is a purpose-built industrial controller for Modbus networks, supporting up to 32 RS-485 devices or sensors. It also includes a 1-Wire Bus for temperature and humidity monitoring, making it a versatile option for process, facility, and OEM applications.
With its browser-based interface and embedded GUI logic builder, the X-404™ streamlines configuration and control while eliminating licensing fees and vendor lock-in.
X-404C™ – Cellular-Enabled Model
The X-404C™ adds a built-in cellular modem, extending Modbus master and sensor monitoring capabilities to remote or distributed environments.- Modbus RS-485 input
- Up to 16 temperature sensors
- Cellular version available
Global Cellular Coverage. Discuss international cellular options with a sales engineer.
[frequentlyBought ids="7624,7927,34491,7793"]
-
X-405™ | Temp and Humidity Module
$219.99 – $249.99Price range: $219.99 through $249.99The X-405™ is a dedicated temperature/humidity monitoring module, supporting up to 16 temperature or humidity sensors. With configurable data logging and the ability to email daily log files, it provides a reliable, drop-in solution for critical facilities, OEM equipment, and process environments.
Designed as both a stand-alone device and a drop-in solution for seamless integration, the X-405™ passes sensor data to any third-party software, server, or cloud platform using open protocols—delivering accurate monitoring without licensing fees or proprietary lock-in.Up to 16 temp sensors
[frequentlyBought ids="7624,7540,7587,7577"]
-
X-406™ | 1-Wire Multi-Bus Module
$269.99 – $299.99Price range: $269.99 through $299.99The X-406™ is a four-channel temperature/humidity monitoring module that supports up to 64 temperature and humidity sensors (16 per channel). Designed for industrial and commercial applications, it offers scalable monitoring for facilities, OEM equipment, and process environments requiring broad sensor coverage.
With its browser-based interface, embedded GUI logic builder, and open protocols, the X-406™ functions as a stand-alone device and also integrates seamlessly into SCADA, PLC, or cloud platforms—providing reliable, large-scale environmental data acquisition without licensing fees or vendor lock-in.Up to 64 Temperature Sensors
4 independent 1-Wire Buses for up to 64 sensors
[frequentlyBought ids="7624,7540,7587,45108"]
-
X-408™ | Digital Input Module
$219.99 – $249.99Price range: $219.99 through $249.99The X-408™ is an eight-channel input controller with optically isolated digital inputs, purpose-built for reliable dry contact monitoring in industrial and commercial environments.
It can operate as a stand-alone device using its embedded GUI logic builder and browser-based interface, or integrate seamlessly with SCADA, PLC, and IIoT systems via open protocols. Whether deployed for alarms, equipment status, or facility monitoring, the X-408™ delivers dependable digital input management without licensing fees or vendor lock-in.8 Digital Inputs
Discrete On/Off
Counters
Frequency
[frequentlyBought ids="7624,7798,7876,34091"]
-
X-417™ | Analog Output Module
$369.99 – $449.99Price range: $369.99 through $449.99The X-417™ is an industrial analog output controller offering up to five individually programmable outputs, with model numbers (X-417-1 through X-417-5) corresponding to the number of outputs available. This modular approach allows you to scale cost-effectively, selecting only the channels you need for your application.
The X-417™ can operate as a stand-alone device with its embedded GUI logic builder and browser-based interface, or integrate seamlessly with SCADA, PLC, and OEM systems using open protocols with no licensing fees required.Up to 5 Analog Outputs
Analog Signal Mirroring
V, mA outputs
[frequentlyBought ids="7624,7621,7793"]
-
X-418™ | 8-Channel Analog Input Module
$369.99 – $399.99Price range: $369.99 through $399.99The X-418™ is an industrial-grade analog input controller with eight configurable analog-to-digital channels, designed for reliable monitoring of process variables such as tank or bin level, pressure, flow, current, and more.
It can function as a stand-alone device with its embedded GUI logic builder and browser-based dashboards, or integrate seamlessly into SCADA, PLC, and IIoT platforms using open protocols. The X-418™ delivers accurate, scalable sensor monitoring without licensing fees or vendor lock-in—ideal for OEM equipment, utilities, and process automation environments.8 Analog Inputs (multi-function)
±1.28V, ±2.56V, ±5.12V, ±10.24V
4-20mA (Inputs 1-4 only)
[frequentlyBought ids="7621,34491,7916,7781"]
-
X-420™ | Instrumentation-Grade Data Acquisition
$369.99 – $399.99Price range: $369.99 through $399.99The X-420™ is a versatile industrial controller with software-programmable digital I/O that can be configured as either inputs or outputs, giving engineers flexibility to adapt the module to a wide range of applications.
It can operate as a stand-alone device with its embedded GUI logic builder and browser-based dashboards, or integrate seamlessly with SCADA, PLC, and IIoT systems using open protocols. Ideal for process monitoring, facility automation, or OEM equipment, the X-420™ delivers adaptable control without licensing fees or vendor lock-in.4 Analog Inputs
2 Digital I/O
Up to 16 Temperature Sensors
[frequentlyBought ids="7621,34491,7916,7781"]
-
WebRelay-10 Plus™ | Industrial Grade Remote Relay Control
$549.99The WebRelay-10 Plus™ delivers reliable remote control with ten individually controlled 15A electromechanical relays, engineered for industrial and commercial applications. With a built-in web server, open API, and seamless integration into SCADA, PLC, and IIoT environments, it enables secure control and monitoring without licensing fees or proprietary software.
Its rugged design and straightforward configuration make the WebRelay-10 Plus™ a dependable choice for system integrators, OEMs, and facility engineers needing scalable relay control at the edge.- 10 Relays (Independent Form-C SPDT)
- 2 Digital Inputs
- Up to 16 Temperature Sensors
- 1/4″ Tab Connectors
[frequentlyBought ids="7624,7621,7793,34491"]
-
WebSwitch Plus™ | Remote Power Switch
$319.99 – $329.99Price range: $319.99 through $329.99The WebSwitch Plus™ provides IP-based control of two independent AC outlets, designed for managing critical devices in industrial, commercial, and OEM environments. With worldwide compatibility (100–240V AC, 50/60Hz) and a secure browser-based interface, it offers reliable remote power cycling, reboot, and monitoring—without licensing fees or proprietary software.
Engineered for seamless integration into automation networks, the WebSwitch Plus™ helps system integrators and engineers reduce downtime, simplify maintenance, and extend control to edge devices.- 2 Relay-Controlled Power Outlets (10A)
- 2 Digital Inputs
- Up to 16 Temperature Sensors
[frequentlyBought ids="7795,7587,7558,34491"]
-
X-11S™ | High-Current Relay Expansion Module
$179.99The X-11S™ adds two 20A Form-C (SPDT) relays to an X-400™ or X-600M™ controller, providing rugged, high-current switching for demanding industrial and OEM applications. Terminated through heavy-duty screw terminals, it is designed for reliable operation in environments where durability and load capacity are critical.
Multiple X-11S™ modules can be connected to the host controller via ribbon cable, which supplies both power and communication, enabling scalable relay expansion without additional wiring complexity.2 High-Current Relays
Expansion Module for the X-400 or X-600M
[frequentlyBought ids="7635,"]
-
X-12S™ | 8 Relay Expansion Module
$179.99The X-12S™ adds eight Form-A (SPST) relays to an X-400™ or X-600M™ controller, providing reliable low-current switching for industrial and OEM applications. Each relay is rated at 2.5A, with commons grouped in two banks for simplified wiring.
A removable terminal connector streamlines installation, while the ribbon cable connection supplies both power and communication from the host controller. Multiple X-12S™ modules can be added for scalable relay expansion in larger systems.8 Relays
Expansion Module for the X-400 or X-600M
[frequentlyBought ids="7635"]
-
X-13S™ | Thermocouple Expansion Module
$179.99The X-13S™ is a two-channel thermocouple expansion module for the X-400™ and X-600M™ controllers. Designed as a signal conditioner for Type-K thermocouples, it provides accurate temperature measurement for demanding industrial applications.
Common use cases include kilns, furnaces, ovens, process heating systems, and industrial equipment monitoring where precise thermal data is critical. Multiple X-13S™ modules can be connected via ribbon cable, which supplies both power and communication from the host controller—allowing scalable integration of temperature sensing into larger automation systems.2 Channel Type-K Thermocouples
Expansion Module for the X-400 and X-600M
[frequentlyBought ids="7635,7616"]
-
X-15S™ | 8 Digital Input Expansion Module
$179.99The X-15S™ adds eight optically isolated digital inputs to an X-400™ or X-600M™ controller, providing reliable status monitoring while maintaining electrical separation between field equipment and low-voltage control circuits. This isolation improves safety and reduces the risk of ground loop interference in industrial environments.
Multiple X-15S™ modules can be connected to the host controller via ribbon cable for power and communication, enabling scalable expansion for large systems. Typical applications include alarm panel integration, equipment status monitoring, safety interlocks, and facility automation.8 Digital Inputs
Expansion Module for the X-400 or X-600M
[frequentlyBought ids="7635,7798,34091"]
-
X-16S™ | 8 Analog Input Expansion Module
$359.99The X-16S™ adds eight analog inputs to an X-400™ or X-600M™ controller, delivering high-resolution measurement with a 24-bit A/D converter. Inputs can be configured for single-ended or differential readings, providing flexibility for a wide range of sensor types. A built-in 5.0V reference output allows direct connection of potentiometers and other resistance-based sensors.
Connected via ribbon cable for both power and communication, one or more X-16S™ modules can be added to scale analog input capacity. Common applications include process monitoring, flow and pressure sensing, tank or bin level measurement, and precision instrumentation.8 Analog Inputs
Expansion Module for the X-400 or X-600M
[frequentlyBought ids="7635,7916,7781"]
-
X-17S™ | 4 Relay, 4 Input Expansion Module
$179.99The X-17S™ adds four Form-A (SPST) relays and four optically-isolated digital inputs to an X-400™ or X-600M™ controller, making it a versatile expansion option for both control and monitoring. Relays are designed for moderate load switching, while optical isolation ensures electrical separation between field equipment and low-voltage control circuits—improving safety and reducing interference.
Multiple X-17S™ modules can be connected via ribbon cable for power and communication, enabling scalable expansion. Typical applications include equipment control, alarm panel monitoring, pump or fan management, and facility automation.4 Relays
4 Digital Inputs
Expansion Module for the X-400 and X-600M
[frequentlyBought ids="7635,7798,34091"]
-
X-18S™ | 10 High-Current Relay Expansion Module
$309.99The X-18S™ adds ten high-current relays to an X-400™ or X-600M™ controller, each rated at 15A with Form-C (SPDT) contacts for maximum flexibility in switching. Connections are made directly to the relays through rugged ¼″ tab terminals, ensuring reliable performance in demanding environments.
Designed for industrial and OEM applications, the X-18S™ is ideal for controlling motors, pumps, fans, lighting, and other high-load equipment. Multiple modules can be connected to the host controller via ribbon cable for both power and communication, enabling scalable expansion for large systems.10 High Current Relays
Expansion Module for the X-400 and X-600M
[frequentlyBought ids="7635,7696"]
-
X-19S™ | Multi-Purpose I/O Expansion Module
$389.99The X-19S™ is a versatile expansion module for the X-400™ and X-600M™ controllers, combining 16 relays, 16 optically isolated digital inputs, and 4 analog inputs in a single unit. Screw terminal strips provide secure, industrial-grade connections for all I/O points.
As a high-density module, the X-19S™ is ideal for applications that require large-scale control and monitoring in a compact footprint, such as building automation, process control, and OEM equipment. Multiple X-19S™ units or other expansion modules can be connected via ribbon cable to scale I/O capacity as needed.16 Relays
16 Digital Inputs
4 Analog Inputs
Expansion Module for the X-400 and X-600M
[frequentlyBought ids="7635,7696,34091,7916"]
-
X-20S™ | 6 Relay, 6 Digital Input Expansion Module
$309.99The X-20S™ adds six high-current relays and six optically isolated digital inputs to an X-400™ or X-600M™ controller. Each relay is rated for heavy-duty switching with Form-C (SPDT) contacts, while the isolated inputs provide reliable status monitoring with electrical separation from control circuits.
Connections are made through rugged screw terminal strips, ensuring secure wiring in industrial environments. Multiple X-20S™ modules or other expansions can be added via ribbon cable for scalable system growth. Typical applications include pump and fan control, equipment monitoring, and facility automation.6 Relays
6 Digital Inputs
Expansion Module for the X-400 and X-600M
[frequentlyBought ids="7635,7798,34091,7876"]
-
X-21S™ | Relay Form C / SPDT Expansion Module
$179.99The X-21S™ adds four Form-C (SPDT) relays, each rated at 2.5A, to an X-400™ or X-600M™ controller. Designed for light-duty switching, it provides reliable control in applications where smaller loads need to be managed efficiently.
Multiple X-21S™ modules can be connected via ribbon cable, which supplies both power and communication, enabling scalable relay expansion in larger systems.4 Form-C/SPDT Relays
Expansion Module for the X-400 or X-600M
[frequentlyBought ids="7635"]
-
X-22S™ | 8 Analog Input Expansion Module
$349.99The X-22S™ adds eight high-resolution analog inputs to an X-400™ or X-600M™ controller, supporting multiple voltage ranges as well as 4–20mA current-loop sensors. This flexibility makes it ideal for integrating a wide range of industrial and process instrumentation.
Engineered for accuracy and reliability, the X-22S™ is well-suited for applications such as tank or bin level monitoring, flow and pressure measurement, and energy or environmental data acquisition. Multiple X-22S™ modules can be connected via ribbon cable to expand analog input capacity as needed.8 Analog Inputs
Expansion Module for the X-400™ or X-600M™
[frequentlyBought ids="7635,7916, 22960"]
-
FridgeAlert | Temperature Monitoring With Touch Screen
$599.99 – $699.99Price range: $599.99 through $699.99The 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
Global Cellular Coverage. Discuss international cellular options with a sales engineer.
[frequentlyBought ids="7540,7558,7573,7624"]
-
WebRelay Wireless™ | Single Relay & Input Module
$219.99The WebRelay Wireless™ combines an electromechanical relay and optically-isolated digital input with secure Wi-Fi connectivity, eliminating the need for additional hardware or middleware. Its on-device web server and open API make configuration and integration straightforward, whether you’re extending SCADA systems, deploying remote monitoring, or embedding control into OEM equipment.
Designed for industrial and commercial environments, WebRelay Wireless™ provides a compact, reliable solution for edge control—without licensing fees or vendor lock-in.- 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"]
-
XW-110 Plus™ | Wireless Temperature Sensor
$209.99 – $229.99Price range: $209.99 through $229.99The 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"]
-
XW-111™ | Wireless Digital Input Monitor
$189.99 – $209.99Price range: $189.99 through $209.99The 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"]
-
XW-112™ | WiFi Water Detector
$189.99The 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)