Temperature Monitoring Systems / Humidity Monitoring
Our modules are an integral part of many temperature monitoring systems, providing temperature alarms, remote monitoring and control.
Remote Temperature Monitoring Systems
ControlByWeb's temperature modules provide an accurate way to remotely monitor temperatures over an IP network. Wi-Fi temperature sensors and Ethernet temperature sensors are both available depending on your project needs. The modules can be used for environmental temperature monitoring systems and simple control. Multiple temperature sensors can be connected and certain models also have relays that can be used for control.
Our temperature modules are fully configured in minutes using a web browser. There is no monthly subscription, and no additional software needed.
Our one wire compatible controllers can be used with our sensors when looking for temperature and humidity control or a similar solution.
Setup Temperature Alert Emails
Configure the modules to send email messages when a preset temperature is reached.

FridgeAlert remotely monitoring the temperature of walk-in freezer/cooler.
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
The Temperature Modules provide remote temperature monitoring and remote relay control using a standard web browser. These relays can control devices such as alarm signals, heaters, fans, etc.
Send Temperature Data via API
ControlByWeb's temperature monitoring modules can easily send sensor data to third-party software, control systems, or PLCs using XML or Modbus TCP/IP.

Computers, PLCs, and automation controllers can communicate with ControlByWeb temperature modules using XML commands, or Modbus TCP/IP.
More Remote Temperature Monitoring Applications
Features
- Connect multiple temp/humidity sensors
- Temperature Range: -67°F to 257°F (-55°C to +125°C)
- Thermocouple Range: -328°F to +500°F (-200°C to +260°C)
- Email/Text alerts when temperature crosses preset thresholds
- Control relays based on preset thresholds
- Built-in web server
- Configurable control and status web page
- Custom logic - No programming required
- Modbus/TCP support
- XML formatted status and control
- Password protected
- Rugged DIN rail or wall-mount enclosure
- Power supply options: 9-28 VDC and/or POE



Temp/Humidity Monitoring Modules
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- Relays
- Digital Inputs
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- Frequency Input
- AC Outlets
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- Expandable I/O
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- Auto Reboot
- Scheduling
- Logging
- BASIC Interpreter
- SNMP
- Modbus TCP/IP
- Email Alerts
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FridgeAlert™ | Temperature Monitoring with Built In Display
Part number(s): FA100
DISPLAY
Type: Touchscreen
Size: 3.5"
Resolution: 320X240
INPUTS
1-Wire Bus: 10
Temperature
Digital: 1
Type: Door Sensor
FEATURES
Email Alerts
Conditional Logic
Logging
Ethernet
Wi-Fi
Peer-to-peer
PROTOCOLS
HTTP, HTTPS, SSL, XML, JSON, Modbus TCP/IP, SNMP, SMTP, Remote Services

FridgeAlert™ Cellular | Temperature Monitoring with Built In Display
Part number(s): FA100C
DISPLAY
Type: Touchscreen
Size: 3.5"
Resolution: 320X240
INPUTS
1-Wire Bus: 10
Temperature
Digital: 1
Type: Door Sensor
FEATURES
Email Alerts
Conditional Logic
Logging
Ethernet
Wi-Fi
Cellular
Peer-to-peer
PROTOCOLS
HTTP, HTTPS, SSL, XML, JSON, Modbus TCP/IP, SNMP, SMTP, Remote Services
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
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
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
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
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
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

X-432™ | Web-Enabled Advanced I/O Controller
Part number(s): X-432-I
OUTPUTS
Relays: 16
Current: 2A 30VDC, 30VAC
INPUTS
Digital: 18
18 Total | 16 Optically-Isolated
Analog Inputs: 4
Input Range: 0-5 VDC
1-Wire Bus: 16
Temperature
FEATURES
Email Alerts
Conditional Logic
Logging
Scheduling
BASIC Interpreter
Peer-to-peer
PROTOCOLS
HTTP, HTTPS, SSL, XML, JSON, Modbus TCP/IP, SNMP, SMTP, Remote Services

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

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
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 ...
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