
WEB THERMOSTAT
7-day programmable thermostat with remote monitoring and control from any location!
Overview
A thermostat that is entirely monitored and controlled with a smartphone or any web browser! The X-300™ Advanced Web-Enabled Temperature Monitoring & Thermostat is a modern, full-featured thermostat. Connect up to three temperature/humidity sensors to the X-300 in thermostat mode.
Directly wire the X-300 to your HVAC unit and use it's web-based user interface to program, control, and monitor a single-stage thermostat. Monitor and control of the X-300 Web Thermostat without any cloud services! There are no service or reoccurring fees.
Features
- Full-featured thermostat
- Scheduling
- Built-in web server
- Email/text notifications
- 1-3 temp/humidity sensors
- Wide temperature range for unique applications
- And much more...

X-300 wired to the HVAC unit and connected to a local network or to the Internet.
*The above illustration is for demonstration purposes only, it does not represent actual wiring.
Web-Enabled Thermostat
In the above example, an HVAC unit located in an office building is wired directly to the X-300. The X-300 monitors and controls the indoor temperature. It also monitors and displays the outdoor temperature. During the winter months, the X-300 is programmed to maintain a lower temperature in the office building after hours, and to maintain a higher temperature right before business hours and throughout the day.
Energy Efficiency
On the weekends and holidays when the office is unoccupied, the X-300 is programmed to maintain the office at a lower temperature, allowing the company to save money on heating costs.
No Cloud Services or Monthly Fees
The X-300 is ideal for managing both heating and air conditioning remotely. With the X-300's built-in web server, you can access the thermostat controls on a mobile phone or by using a web browser. There are no monthly fees, and no software to install!
You can also use our free, CBW-Mobile app to access, control, and monitor ControlByWeb devices on one central control panel.
BEST PRODUCTS for Web-Enabled Thermostat

X-300 | Advanced Web-Enabled Temperature Monitoring & Thermostat
Remotely control and monitor a single-stage HVAC system using the X-300. Add up to three temperature/humidity sensors to monitor indoor/outdoor temperatures.
1-3 Temperature/Humidity Sensors
(Thermostat Mode)
Examples: Measure indoor, outdoor temperatures, and also one additional temperature sensor
3 Relays
Examples: Pre-configured to control the HVAC's heating, cooling, and fan
Special Features
Graphical User Interface - Weekly Scheduling - Email and Text Alerts for high/low temperature alarms