1. [Wi-Fi + Bluetooth Dual Mode]: Connect to the network quickly. Wi-Fi and Bluetooth dual-mode connectivity enhances connection speed. 2. [High/Low Temperature Alert]: Receive a notification on your phone when the temperature goes above or below the set threshold. 3. [High/Low Humidity Alert]: Receive a notification on your phone when the humidity goes above or below the set threshold. 4. [Real-Time Monitoring]: Powered by two AAA 1.5V batteries (not included). Low power consumption allows up to approximately 1 year of operation under default settings. Data update frequency is adjustable from 1 to 120 minutes; shorter intervals reduce battery life. 5. [Temperature & Humidity Graphs]: View historical temperature and humidity data as charts in the companion app for intuitive trend analysis. 6. [Temperature Unit Switch]: Toggle between Celsius and Fahrenheit display in the app. 7. [Voice Assistant Compatibility]: Works with Amazon Alexa and Google Assistant. Ask your voice assistant for current temperature and humidity readings. Power Supply: Two AAA 1.5V batteries (batteries not included) Wi-Fi Support: 2.4 GHz IEEE 802.11 b/g/n Temperature Measurement Range: -10°C to 55°C Temperature Accuracy: ±0.3°C Humidity Measurement Range: 10% to 99% RH Humidity Accuracy: ±3% RH Color: Black Material: Plastic Package Contents: 1 x Wireless Temperature and Humidity Sensor