Digital LCD Display Intelligent Thermostat Cellphone APP Remotely Control Wifi Temperature Controller Built-in 30A Relay with Timer Startup & Shutdown High and Low Temperature Record Cloud Data Recording and Alarm Function This temperature controller has digital display with backlight, clear definition, clearly displayed data, display adapts to environmental changes and is easy to read. Precise temperature control, temperature control ranges from -40℃ to 110℃, and with 0.1℃ temperature control accuracy. ​The built-in 30A high-current relay with 110-220VAC power output does not distinguish between zeroline and fireline and is suitable for all AC powered devices.​ ​Two models are available, you can choose the XY-SA30 or XY-SA30-W model depending on your needs, the XY-SA30-W comes with mobilephone APP control and WiFi capabilities.​ Features: ​Digital display with backlight, clear definition, clearly displayed data, display adapts to environmental changes and is easy to read. Precise temperature control, temperature control ranges from -40℃ to 110℃, and with 0.1℃ temperature control accuracy. ​Equipped with a TTL communication interface, it can be connected to a WiFi communication module.​ ​The built-in 30A high-current relay with 110-220VAC power output does not distinguish between zeroline and fireline and is suitable for all AC powered devices.​ Product default with NTC waterproof sensor, stainless steel waterproof temperature probe, 2 meters length, probe specifications: 4 * 20mm. ​Two models are available, you can choose the XY-SA30 or XY-SA30-W model depending on your needs, the XY-SA30-W comes with mobilephone APP control and WiFi capabilities.​ XY-SA30-W Only: WiFi Networking Control: Real-time communications, external network remotely control, unlimited distance alert notification, cloud recording, remote firmware upgrade. Computer web control, cellphone APP control, support for Android and iOS system. Cellphone APP Control: Automatic mode, with emergency stop function can be implemented to work for a specified period of time; ​Manual mode, the product transforms into an intelligent time-controlled switch that supports timer, time-delay and cycle. Specifications: Name: Temperature Controller Material: plastics Input voltage: 110-220VAC Output voltage: 110-220VAC Temperature control ranges: -40℃ to 110℃ Max power: within 4000W Item size: 79 * 43 * 25mm / 3.11 * 1.69 * 0.98in Package size: 100 * 80 * 50mm / 3.94 * 3.15 * 1.97in Package weight: 99g / 3.49ounce Packing List: 1 * Temperature Controller