Product selling points: 1. Use high quality material, quality is guaranteed 2. High current 30A relay 3. APP remote control, HD full view display 4. Alarm notification, cloud record, remote firmware upgrade 5. Wide range of applications Parameter: Input power supply: AC110-220V Output type: charged output (AC110-220V) Probe Model: 10K NTC 3950B Probe length: 2 meters waterproof probe Maximum control: power 4000W or less Additional features: Buzzer alert + backlight control Temperature control range: -40~110°C Temperature control accuracy: 0.1°C Temperature measurement range: -40~110°C 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 don't mind. And take a consideration before place the order if you have request for color or appearance. type: A-SA30 (Without WIFI) / B-SA30W (with WIFI Remote control) Material: ABS colour: gray Package Contents: 1 x Intelligent temperature controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.