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.Temperature LoggingFirst, 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 ThermostatSecond, 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.FeaturesWeb-browser based - no software requiredEmail alertsThree, independently controlled 3A relaysField updatableBuilt-In real-time clock w/ capacitor backupTemperature LoggerSupports HTTP, TCP, SNMP, Modbus/TCPSupports additional data logging and management from web servicesInternal temperature and voltage monitoring for diagnosticsWide operating temperature rangeRemovable terminal connector for convenient wiringCompact, DIN-Rail mountable enclosureMeasurement Range: -67°F to 257°F (-55°C to +125°C)