Feature: 1. Golden section, appearance matching mainstream switch panel. High quality selection brass material, large wiring grooves, wiring more firm. 2. Special terminal, fireproof, fast heat dissipation, strong conductivity and have excellent wear resistance performance. 3. Panel using environmental protection PC flame retardant material, not easy to fade, safe, high temperature resistance, and can use for a long time. 4. APP control, free your hands, designed with child lock key locking function, more reliable and safe for home using. 5. Power off memory function, more intelligent. White backlight saves energy, suitable for home use and easy to control. Specification: Item Type: Thermostat Material: PC+Brass Size: Approx. 8.6 x 8.6cm / 3.4 x 3.4in Screen: LCD Display Temperature Control Range: 5 ~ 35°C Temperature Control Accuracy: ±1℃ Sensor: NTC 10K B25/50:3950K Communication Mode: WIFI (2.4G) Input Voltage: 220VAC±10%50/60Hz Output Power: 100-240VAC 5A Monthly Power Consumption: S1.7kWh /A APP: for Android / for ios. Package List: 1 x Thermostat2 x Screw 1 x Manual Note: This product can only be used with 220V voltage. Please confirm your voltage before purchase.