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Temperature Monitoring & Control

Temperature sensors and controllers for the remote monitoring and/or control of temperature for indoor and outdoor environments, industrial machines, commercial refrigeration, and more.

RECOMMENDED PRODUCTS

Temperature Experts in Process Control & Industrial Automation

We engineer and manufacture industrial I/O devices ideal for nearly any temperature monitoring and control application you can imagine. We integrate with control systems such as SCADA and DCS with common communication protocols like Modbus TCP/IP.

Ethernet & Wi-Fi I/O Modules & Temperature Sensors

Our specialty is Ethernet and Wi-Fi temperature monitoring and control as either a stand-alone device, a small to medium-sized temperature control system, or as part of a larger industrial control system.

Flexible Temperature Monitoring Solutions

Our I/O modules and sensors are inherently flexible due to their compatibility with a variety of process equipment, control systems, communication protocols, and networks. Our customers trust our reliability in applications and industries ranging from cold-chain monitoring to server room automation.

Remote Temperature Monitoring

With a built-in web server, on-device logic, and Modbus TCP/IP communication our I/O devices are ideal for remote temperature monitoring and control. Our modules network via either ethernet or WiFi and can interface with telemetry such as cellular, radio, and satellite. Common applications include freezer & refrigerator monitoring, remote building automation, and asset monitoring.

Best Sellers

Monitoring & Control

X-410
X-410

4 Inputs, 4 Relays, 1-Wire Bus: Up to 16 temp sensors

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Wi-Fi Monitor

XW-110
XW-110

Stand-Alone Temperature Module

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Ethernet Monitor

X-405
X-405

1-Wire bus, up to 16 temp/humidity sensors

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Temperature Probe

Temperature Sensor
Water-Resistant Digital Sensor

1m Length (3ft)

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Temperature & Humidity Probe

XW-110
Humidity/Temperature

Dual Measurement Digital Probe

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Digital Temperature Sensor

X-405
Temperature Sensor

Digital Temperature Sensor

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Features

Setup Temperature Alert Emails

Configure the modules to send email messages when a preset temperature is reached.

Log Temperature Data

Log temperature data over time and send log files via email or FTP at preset intervals.

Control Relays Based on Temperature Sensor Data

Configure relays remotely via standard web browser to trigger alarms, heaters, fans, etc.

Send Temperature Data via API

Send sensor data to 3rd party software or control systems using XML or Modbus TCP/IP.

Common Temperature Problems

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Asset & Inventory Losses

Lack of visibility and notifications causes expensive maintenance and loss of inventory.

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Compliance

Governing bodies often require temperature logging to prove an acceptable range.

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Expense

Remote monitoring typically requires expensive equipment and on-going subscription fees.

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Installation & Scalability

Temperature sensors can be needed in difficult locations, expensive to scale, and require extensive wiring.

ControlByWeb Monitoring Solutions

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Remote Alarms & Control Logic

Web-based monitoring, alarms, and control prevent the loss of valuable assets.

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Data Logging

Data logging along with email records and FTP uploads helps prove compliance.

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Cost Effective

Affordable equipment that only requires an Internet connection for full functionality. Cloud optional.

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Flexible Architecture

Expandable I/O and peer-to-peer communication overcomes common installation challenges.

Application Case Studies

Monitor freezer temperature

Freezer Temperature Monitoring

Automate greenhouse environments

Smart Greenhouse Automation

Monitor server room temperature

Server Room Temperature Monitoring

Monitor boiler temperature

Boiler Temperature Monitoring

How our Customers Use ControlByWeb™ Products

Simple Stand-Alone Device

A single ControlByWeb device can operate on its own as long as it has an IP network for communication. Data can easily be accessed on a local network or via the Internet. Ideal for remotely monitoring a single site or multiple facilities.

Stand-Alone I/O Device

Integrated in Control Systems

Integrate ControlByWeb devices throughout your advanced control system using Modbus TCP/IP, XML, SNMP and more. ControlByWeb devices act as remote terminal units (RTUs) in industrial control systems of all sizes and complexities.

Remote Terminal Unit

Complete Control System

Create a fully functional control system using ControlByWeb I/O devices and sensors. Our X-400 and X-600M with expandable I/O and programmable logic are ideal for a control system you can monitor & control locally or remotely.

I/O Control System

Six Reasons Why You Should Choose ControlByWeb®

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Industrial-Grade Reliability Is Our First Priority

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Scalable Solutions for any Industrial Application

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Cost Effective, Self-Contained I/O Devices

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Flexible Communications and Compatibility

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Responsive Support and Thorough Documentation

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Founded in 1999 and Manufactured in the USA

FREE TEMPERATURE MONITORING AND CONTROL CONSULTATION

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Recommended Products for Temperature Monitoring and Control
Name XW-110 X-420 X-400
Temp/Humidity Sensors Supported Up to 3
Temperature		 Up to 16
Temperature/Humidity		 Up to 16
Temperature/Humidity
Relays
Control heaters, fans, vents, lights, motors, pumps, valves, locks		 2
Configurable, 5V inputs/output		 Up to 64*
Analog Inputs
Compatible with Soil Moisture sensors		 4 Up to 64*
Digital Inputs
Monitor door sensors		 2 4
Communication Type
Cellular price may not be reflected		 Wireless Ethernet Ethernet & Cellular
X-400C model for Cellular
Task Builder
Custom greenhouse logic with no scripting required		 ✔ ✔
Email/Text Notifications ✔ ✔ ✔
Log Sensor Data ✔
Log file sent via daily email		 ✔
Internal		 ✔
Internal
Supports Basic Scripts
Used for advanced logic		 ✔ ✔ ✔
Admin/Manager/User Access Roles ✔ ✔
Password Protected (Optional) ✔ ✔ ✔
Protocols HTTP, XML, SSL, SMTP, Modbus TCP/IP, Remote Services HTTP, HTTPS/TLS, SSL, XML, Modbus TCP/IP, SNMP, SMTP, Remote Services HTTP, HTTPS/TLS, SSL, XML, Modbus TCP/IP, SNMP, SMTP, Remote Services
Power Options Two AA Batteries and/or 5 VAC 9-28 VDC 9-28 VDC
Price $159.95 $269.95 $249.95*
More Information More Information More Information

* May require an expansion module(s). The X-400 is a master controller compatible with expansion modules which contain a variety of I/O combinations. It can handle up to 64 I/O total (up to 64 of an I/O type (relays, temp sensors, etc.)).

Frequently Asked Questions About Temperature Monitoring & Control

Answer

Temperature monitoring is the act of measuring how hot or cold an environment or object is, and reporting that value to a useful location such as a local display, web server, cloud, or control system. Temperature monitoring enables alarms and notifications for human interaction, automated process control, or passive study and analysis. It is important for a variety of industries from Food and Beverage to Data Centers.

Answer

Our primary products are I/O devices that monitor inputs and provide outputs for control systems. Some of our modules have internal temperature sensors. However, we do offer digital temperature sensors which are compatible with our I/O devices and are less susceptible to electrical noise.

Answer

The temperature sensor probes we offer have a lifetime calibration guarantee. For more information, contact us.

Answer

You can access our devices using a standard web browser. You do not need additional software to access, view, and use your data. However, our products are commonly integrated with a variety of other control systems which display and log the data our products record.

Answer

You can log data as infrequently as once per day and as frequently as once every 60 seconds.

Answer

You can either view a built-in graph (on select devices), or you can type the IP address of your device in your web browser followed by "/log.txt". This displays the log file in .txt file format which can be downloaded.

Answer

For most Ethernet devices, you can have up to 600 feet of cable total (in ideal circumstances). We recommend reviewing a product's specification page for more information on the total sensor length allowed for that given product. For wiring instructions, you can learn more here.

Answer

Our devices are designed to be Remote Terminal Units (RTUs) within a larger control system and communicate via Ethernet IP using common protocols such as Modbus TCP/IP, SNMP, XML, or even JSON.

Answer

The devices embedded web server has a setup page for email alarms. This can be converted to text messages using your phone carrier's standard email-to-text function. Note: some older products do not incorporate modern encryption and may need specific SMTP servers. Learn more about email setup here and about email troubleshooting here.

Answer

No special network equipment or gateways are needed. Our devices simply need a sensor input and an IP network. Some devices have a built-in temperature sensor, like the XW-110 wireless temperature sensor, and connect to your network via Wi-Fi.

Answer

All of our I/O devices are remotely accessible via their internal web server. Simply assign a static IP address, provide network connection such as the Internet, and set up a port forward.

Answer

Our devices can communicate with one another across networks for a highly flexible system to match your exact needs. Our industrial-grade I/O gives you rugged reliability as either a primary or redundant control system. You can deploy a single I/O module with a few inputs and outputs to control a simple process, or network peripheral devices to one central node for a robust system of controls compatible with virtually any sensor or process equipment. ControlByWeb devices can communicate with each other using Peer-to-Peer or Modbus TCP/IP. Monitor and control local or remote processes across any distance, wherever a network connection can be established.

Answer

ControlByWeb devices communicate using Modbus TCP/IP, SMTP, SNMP V1/2C/V3, XML, JSON, HTTP, HTTPS, and SSL.

Answer

Yes. Our I/O devices act as RTUs or Edge Controllers for existing systems. Our expandable I/O modules are a powerful tool that allow as many inputs and outputs of different specifications as needed. Both digital and analog inputs and relay outputs are available and system communication happens via Ethernet or Wi-Fi using Modbus TCP/IP, SNMP, XML, and more.

FREE TEMPERATURE MONITORING AND CONTROL CONSULTATION

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Temp/Humidity Monitoring Modules

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  • Relays
  • Digital Inputs
  • Analog I/O
  • Frequency Input
  • AC Outlets
  • Counters
  • Modular
  • Wireless
  • Expandable I/O
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  • Auto Reboot
  • Scheduling
  • Logging
  • BASIC Interpreter
  • SNMP
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  • Email Alerts
  • Task Builder
  • New
X-400 Web-Enabled I/O Controller

X-400™ | Web-Enabled I/O Controller

Part number(s): X-400-I

HARDWARE - Expandable with modular I/O products

  • Connectivity: Ethernet
  • Expandable I/O: Up to 64 I/O points
  • Expansion Bus: Add up to 32 expansion modules and/or remote ControlByWeb® devices.
  • DIN-rail mount enclosure
  • 1-Wire Bus (Up to 16 temperature/humidity sensors)

FEATURES

  • Custom email alerts using encrypted email servers
  • Logging & automatic graphing
  • BASIC script interpreter
  • Configurable web pages
  • Scheduling/Task Builder (Advanced logic with no scripting)

    • Protocols: HTTP, HTTPS, SSL, XML, Modbus TCP/IP, SNMP V1,2C,V3, SMTP

    MORE INFORMATION BUY NOW
    WebRelay Wireless Single Relay, Single Input, Up to 4 Temperature Sensors

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

    Part number(s): XW-210-I

    OUTPUTS

    Relays: 1

    Current: 12A 277VAC, 30VDC

    INPUTS

    Digital: 1

    Type: Optically-Isolated

    1-Wire Bus: Up to 4 sensors

    Temperature/Humidity

    FEATURES

    Email Alerts

    Logging

    Basic Script

    Peer-to-peer

    PROTOCOLS

    HTTP, XML, SSL, Modbus TCP/IP, SMTP, Remote Services

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    X-405

    X-404™ | Modbus Master Controller

    Part number(s): X-404-I

    OUTPUTS

    -

    INPUTS

    Modbus Sensors: Up to 32 modbus devices/sensors

    1-Wire Bus: Up to 16 temperature/humidity sensors

    FEATURES

    Email Alerts

    Logging

    Scheduling

    BASIC Interpreter

    Peer-to-peer

    PROTOCOLS

    HTTP, HTTPS, SSL, XML, Modbus TCP/IP, SNMP V1,2C,V3, SMTP

    BUY NOW MORE INFORMATION
    X-405

    X-405™ | Web-Enabled Temperature and Humidity Module

    Part number(s): X-405-I, X-405-E

    OUTPUTS

    -

    INPUTS

    1-Wire Bus: Up to 16 sensors

    Temperature/Humidity

    FEATURES

    Email Alerts

    Logging

    Scheduling

    BASIC Interpreter

    Peer-to-peer

    PROTOCOLS

    HTTP, HTTPS, SSL, XML, Modbus TCP/IP, SNMP V1,2C,V3, SMTP

    BUY NOW MORE INFORMATION
    X-406

    X-406™ | Web-Enabled 1-Wire Multi-Bus Module

    Part number(s): X-406-I, X-406-E

    OUTPUTS

    -

    INPUTS

    4, 1-Wire Buses: Up to 64 sensors

    Temperature/Humidity

    FEATURES

    Email Alerts

    Logging

    Scheduling

    BASIC Interpreter

    Peer-to-peer

    PROTOCOLS

    HTTP, HTTPS, SSL, XML, Modbus TCP/IP, SNMP V1,2C,V3, SMTP

    BUY NOW MORE INFORMATION
    X-410

    X-410™ | Web-Enabled Programmable Controller

    Part number(s): X-410-I, X-410-E

    OUTPUTS

    Relays: 4

    Current: 1A 28VAC, 24VDC

    INPUTS

    Digital: 4

    Type: Optically-Isolated (Shared Ground)

    1-Wire Bus: 16

    Temperature/Humidity

    FEATURES

    Email Alerts

    Logging

    Scheduling

    BASIC Interpreter

    Peer-to-peer

    Counters: Inputs 1-4

    Automatic Reboot

    PROTOCOLS

    HTTP, HTTPS, SSL, XML, Modbus TCP/IP, SNMP, SMTP, Remote Services

    BUY NOW MORE INFORMATION
    X-420 Web-Enabled Instrumentation-Grade Data Acquisition

    X-420™ | Web-Enabled Instrumentation-Grade Data Acquisition

    Part number(s): X-420-I, X-420-E

    OUTPUTS

    DIGITAL I/O: 2

    Configurable as relays/digital inputs

    INPUTS

    Digital Inputs: (See Outputs)

    Analog Inputs: 4

    Input Range: ±1.28V, ±2.56V, ±5.12V, ±10.24V, 4-20mA, (No external resistors required.)

    1-Wire Bus: 16

    Temperature/Humidity

    Frequency Input: 1

    0-20 kHz Frequency

    FEATURES

    Email Alerts

    Logging

    Scheduling

    BASIC Interpreter

    Counters: Inputs 1-2

    Peer-to-peer

    Configurable Digital I/O

    PROTOCOLS

    HTTP, HTTPS, SSL, XML, Modbus TCP/IP, SNMP, SMTP, Remote Services

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    New Product
    WebRelay-10, 10 Web-Controlled Relays

    WebRelay-10 Plus™ | 10 Web-Controlled Relays, and more

    Part number(s): X-WR-10R12-IEP

    OUTPUTS

    Relays: 10

    Current: 15A 277VAC, 30VDC

    INPUTS

    Digital: 2

    Type: Non-Isolated

    1-Wire Bus: 16

    Temperature

    FEATURES

    Email Alerts

    Logging

    Scheduling

    BASIC Interpreter

    Counters: Inputs 1-2

    PROTOCOLS

    HTTP, HTTPS, XML, JSON, Modbus TCP/IP, SNMP, SMTP, Remote Services, Remote Monitoring, and Data Logging

    BUY NOW MORE INFORMATION
    New Product
    WebSwitch Remote Power Switch & Auto Reboot Device

    WebSwitch Plus™ | Adv. Remote Power Switch, Auto Reboot, and more

    Part number(s): XRDI-WSEP-NA, XRDI-WSEP-IN

    OUTPUTS

    AC Outlets: 2

    On/Off or Reboot/Pulse

    INPUTS

    Digital: 2

    Type: Non-Isolated

    1-Wire Bus: 16

    Temperature

    FEATURES

    Temperature Monitoring

    Email Alerts

    Logging

    Scheduling

    BASIC Interpreter

    Automatic Reboot

    PROTOCOLS

    HTTP(S), JSON, XML, Modbus TCP/IP, SNMP, Remote Services

    BUY NOW MORE INFORMATION
    X-600M Web-Enabled I/O Controller

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

    Part number(s): X-600M-I

    HARDWARE - Expandable with modular I/O products

    • Expandable I/O: Up to 1,024 I/O points
    • Expansion Bus: Add up to 64 expansion modules and/or remote ControlByWeb® devices.
    • DIN-rail mount enclosure
    • Supports USB WiFi adapters & USB flash drives
    • 1-Wire Bus (Up to 32 temperature/humidity sensors)

    FEATURES

  • Custom email alerts using encrypted email servers
  • Logging & automatic graphing
  • Full-calendar scheduling
  • Configurable web pages
  • Logic scripts or full programs using Lua

    • Protocols: HTTP, HTTPS, SSL, SMTP, Modbus TCP/IP, Remote Services server and client

    MORE INFORMATION BUY NOW
    X-13s Thermocouple Module

    X-13s™ | Thermocouple Expansion Module

    Part number(s): X-13s-K (Requires an X-400 or X-600M controller)

    HARDWARE FEATURES

    • Supports one or two type K thermocouples
    • Fault LED for each thermocouple
    • Powered through expansion bus
    MORE INFORMATION BUY NOW
    XW-110 Wireless Temperature Sensor

    XW-110™ and XW-110 Plus Wireless Temperature Sensor

    Part number(s): XW-110B, XW-110B+PS5VW1.0-2.5mm, XW-110P, XW-110P+PS5VW1.0-2.5mm Only available in the U.S.A. & Canada.

    HARDWARE

    • Monitor 1-3 temperature sensors
    • Wireless Wi-Fi 802.11 b/g/n
    • Built-in web server for configuration and remote monitoring
    • Transmission range up to 250ft

    FEATURES

    • Send encrypted email alarms and weekly status alerts (up to 3 addresses)
    • Temperature logging (XW-110 Plus)
    • No sensor calibration needed
    • Power supply & battery options
    • Small data packets provide long battery life
    • and more ...
    MORE INFORMATION BUY NOW
    X-300 Module

    X-300™ | Advanced Web-Enabled Temperature Monitoring & Thermostat

    Part number(s): X-300-I, X-300-I+PS12-A, X-300-E

    OUTPUTS

    Relays: 3

    Current: 3A 28VAC, 24VDC

    INPUTS

    1-Wire Bus: 8

    Temperature

    FEATURES

    Email Alerts

    Logging

    BASIC Interpreter

    Stand-alone Thermostat

    PROTOCOLS

    HTTP, XML, Modbus TCP/IP, SNMP, SMTP, Remote Services

    BUY NOW MORE INFORMATION
    X-332 Web-Enabled Advanced I/O Controller

    X-332™ | Web-Enabled Advanced I/O Controller

    Part number(s): X-332-24I

    OUTPUTS

    Relays: 16

    Current: 2A 30VDC, 30VAC

    INPUTS

    Digital: 16

    Type: Optically-Isolated

    (2 Counters: Inputs 17 & 18)

    Analog Inputs: 4

    Input Range: 0-5VDC

    1-Wire Bus: 4

    Temperature

    FEATURES

    Email Alerts

    Logging

    Scheduling

    BASIC Interpreter

    Peer-to-peer

    Counters: Inputs 17-18

    PROTOCOLS

    HTTP, XML, Modbus TCP/IP, SNMP, SMTP, Remote Services

    BUY NOW MORE INFORMATION
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    Copyright © 2005-2023 Xytronix Research & Design, Inc. All Rights Reserved.
    ControlByWeb® is a registered trademark of Xytronix Research & Design, Inc. WebRelay™, WebSwitch™, and all other names of products manufactured by Xytronix Research & Design™ are trademarks of Xytronix Research & Design, Inc. 2005-2023.

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