Works with Apple HomeKit, Amazon Alexa, Google Assistant, and SmartThings. Dual Power Mode: The WiFi thermometer hygrometer has dual power supply modes. In bright environments (≥150Lux), it uses ambient light for power. In dark environments, it switches to the built-in battery. . Remote Monitoring: Monitor environmental temperature and humidity changes anytime, anywhere (with internet connectivity). Precision Detection: Built-in 4th Generation Swiss-made high-precision sensor. Multi-Scenes: Monitor temperature and humidity via the Meross app anywhere anytime, such as baby's room, refrigerators, basement, etc. Real-time Alert Notifications: Receive instant notifications through our dedicated app when the temperature and humidity levels surpass your predefined thresholds. Devices Automation: Set temperature and humidity conditions to trigger Meross device automation, such as the on/off of plugs, lights, and switches. 2-Year Data Storage & Export: View and export temperature and humidity data for the past 2 years using the Meross app. *The MS100F temperature and humidity sensor is only compatible with the MSH300 HomeKit hub, version 4.5.x or above.