Note: The Sonoff Sensor DS18B20 must work with the Sonoff TH10/TH16 and cannot work alone. The Sonoff TH10/TH16 is not included. Overview: Sonoff is a universal switch for your smart home system, allowing you to remotely and automatically turn on/off any appliance via a mobile app. When the environmental temperature falls within a preset range, it will automatically turn connected devices on or off. It also supports scheduled operation and allows you to set custom temperature ranges. By working with the Sonoff TH10/TH16, you can make your home smarter. Features: - App Support: Free iOS and Android mobile app (eWeLink). - Sync Status: Real-time device status syncs with the app. - Realtime Monitor: Monitor real-time temperature. - Remote ON/OFF: Control electrical devices from anywhere using the high-accuracy, waterproof DS18B20 sensor. - Share Control: Share control of your smart home with family members. - Timing: Supports up to 8 active countdown, single, or repeat timing tasks for automatic on/off at specified times. - Auto Mode: Set an auto mode to trigger on/off based on a specific temperature or humidity range. - Manual Mode: Manually turn devices on/off instantly. - Trigger Smart Scene: Use temperature or humidity values as triggers to activate other Sonoff devices. - Voice Control: Compatible with Alexa, Google Home, and Google Nest. - Waterproof temperature sensor with stainless steel probe for high accuracy and broad daily use. DS18B20 Sensor Specification: - Type: Waterproof temperature sensor - Probe: Stainless steel temperature probe - Temperature Measuring Range: -55°C to +125°C - Operating Voltage: 3.0–5.5V - Weight: 26g - Length: 1m Package Information: - Package Size: Approx. 9 x 4.5 x 2 cm / 3.54 x 1.77 x 0.78 in - Package Weight: Approx. 26g / 0.92oz Packing List: - 1 x DS18B20 Sensor