Fangrui Product Details 1. Use High-quality Materials With Quality 2. High Current 30a Relay 3. App Remote Control, High-definition Full View Display 4. Alarm Notification, Cloud Recording, Remote Firmware Upgrade 5. Wide Application Range Parameters: Product Model: B: St30-w (with Wifi Remote Control) Input Power Supply: Dc6-30v Output Type: 1 Relay Switch Probe Model: 10k 3950b Probe Length: 2 Meters Waterproof Probe Maximum Control: Current Within 30a Additional Features: Buzzer Prompt+backlight Control Temperature Control Range: -40~110c Temperature Control Accuracy: 0.1c Temperature Measurement Range: -40~110c Tips: The Product May Be Updated Constantly, The Actual Product May Have Slight Differences Or Color Differences The Color And Appearance May Be Changed, Please Dont Mind. And Take A Consideration Before Place The Order If You Have Request For Color Or Appearance. Material: Abs Colour: Gray Package Contents: 1 X Intelligent Temperature Controller Only The Above Package Content, Other Products Are