Intelligent temperature and humidity sensor with Wi-Fi and dual function for indoor use, freezer, aquarium, refrigerator – including built-in battery –

2.9-inch LCD screen: Clear and easy-to-read display of five key data points – temperature, humidity, light, time, and date – for instant and intuitive monitoring. Comprehensive monitoring via mobile app: Real-time control via your smartphone, integrated speaker, and instant audible alerts when preset limits (upper or lower) are exceeded. Compatible external probe (not included): Precise measurement of extreme temperatures – ideal for freezers, cold storage rooms, or even ice cream temperature measurement. Guaranteed high accuracy: Integrated high-performance digital sensor detects deviations of just 0.1°C – absolute reliability for your critical measurements. Versatile use: Suitable for a variety of environments – living spaces, cold storage facilities, commercial refrigerators, or wine cellars. Package contents: 1 Wi-Fi temperature and humidity sensor, 1 USB cable, 1 user manual, 2 screws, 2 expansion plugs. This product is sold by xiaosong on behalf of third parties. It is a compatible product. Thank you for your understanding and support.