SONOFF SNZB-02DR2 AirGuard TH, Indoor Smart Zigbee Temperature and Humidity Sensor, 3.6'' LCD Display, App Monitoring with Charts, Notification Alerts, Data Export, Remote Data Display, 2-Pack

Features

• [3.6'' Large LCD Display with Daily Highs and Lows] The large LCD stays crisp and readable from several meters away, suitable for the elderly, providing rich information grasped at a glance: Real-time data(updated every 5s), Max/Min data in 24-hour and comfort level signals.
• [App Remote Real-time monitoring & notification] You can monitor the temperature and humidity in real time on the App remotely, with up to 120m/400ft coverage. Receive instant alerts from the App when data exceeds the set comfort level.
• [Remote Data Display for Multi-Room Monitoring] The device can display real-time data from another temp. & humi. sensor after setting it as remote data source. Help expand your monitoring area, keep track of the nursery, bathroom, wine cellar, or greenhouse conditions without walking over.
• [High Accuracy & Real-time Chart] With the Swiss Sensirion sensor, the temperature and humidity accuracy is maintained respectively at 0.2 (-20~60) and 2% RH(0~100%RH). App provides a detailed real-time chart recording temp.& humi. data per minute in recent 24 hours.
• [Half-year History Record & Diverse Charts] View 6-month detailed records with maximum, minimum, and average curves across four time spans daily, weekly, monthly, and half-year. The device also provides dew point and VPD insights. All history record can be exported for free.