ControlByWeb X-300-E (PoE)


The X-300 by ControlByWeb is a powerful web thermostat, temperature logger, and temperature alarm that can be monitored and controlled over an IP network.

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1 in stock

3 036 kr tax excl.

3 795 kr tax incl.


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Temperature Logging

First, the X-300™ is a powerful web-based temperature logging instrument that allows you to monitor and control temperatures via an IP network. Up to 8 temperature sensors can be connected at a time.

Temperatures can be viewed in real-time using a web browser. In addition, the X-300™ has many advanced features including email alerts, relay control, a BASIC interpreter, and much more.

Web-Enabled Thermostat

Second, the X-300™ is a 7-day programmable web-enabled thermostat. Users can adjust and set temperatures for heating and cooling systems and view current indoor and outdoor temperatures from any web browser.

As a web thermostat, it provides an attractive control web page that works great on desktop computers as well as smartphones such as the iPhone® and other mobile digital devices.


  • Web-browser based - no software required
  • Email alerts
  • Three, independently controlled 3A relays
  • Field updatable
  • Built-In real-time clock w/ capacitor backup
  • Temperature Logger
  • Supports HTTP, TCP, SNMP, Modbus/TCP
  • Supports additional data logging and management from web services
  • Internal temperature and voltage monitoring for diagnostics
  • Wide operating temperature range
  • Removable terminal connector for convenient wiring
  • Compact, DIN-Rail mountable enclosure
  • Measurement Range: -67°F to 257°F (-55°C to +125°C)

Web-Enabled Temperature Logger

  • The temperature logger can receive data from up to 8 temperature sensors
  • Supports BASIC scripts for advanced configuration

Web-Enabled Thermostat

  • Attractive thermostat user interface
  • Connect up to 3 sensors
  • 7 day programming schedule
  • Connect to single stage heating/cooling system

Power is supplied via PoE (Power over Ethernet, 802.3af) or 5V DC. 1 sensor is included (X-DTS-S3C). Compatible with PRTG Monitor (SNMP).

Data sheet

Model X-300-E