Zigbee Temperature & Humidity Sensor — 3-Pack Wireless Thermometer Hygrometer for Home Automation, Remote Monitoring (Hub Required) — Compatible with Apple HomeKit, Alexa, Works with IFTTT

Three compact Zigbee sensors provide 3-in-1 environmental monitoring by measuring temperature, humidity and atmospheric pressure. Readings update in real time and are recorded in the companion app so you can view trends, track historical data and fine-tune your indoor comfort and air quality. For stable Zigbee communication, place each sensor within 400 inches of the Zigbee hub, and keep the hub within 400 inches of your Wi‑Fi router; the hub and router must be on the same local area network (LAN). Note that Zigbee2MQTT and similar third-party USB dongles are not officially supported, so some functions may be limited or unavailable. Use the sensors for remote monitoring and automation: set temperature or humidity thresholds to receive push alerts on your phone, activate the Hub night light, or trigger other devices (for example, a Smart Plug to run a fan or humidifier) to maintain desired conditions. Requires Hub, not third-party hub.