SONOFF AirGuard Series E-Ink Zigbee Temperature Humidity Sensor | SNZB-02UL

【2.9" E-Ink Display, Clear in Bright Light】The 2.9" E-Ink display offers a nearly 180° viewing angle, keeping readings clear even in bright environments such as sunrooms and balconies.【Multiple Data at a Glance】Once paired and connected, the screen displays temperature, humidity, time, date, weather information, and a comfort indicator, giving you key environmental information at a glance.【6-Hour Data Recall】 No gateway or phone app needed. Simply press the button to view the past 6 hours of temperature and humidity records directly on the screen.【Remote Temperature & Humidity, All on One Screen】Connect compatible sensors to the same gateway and enable Remote Temperature & Humidity Source to view readings from other spaces directly on the screen. Check conditions in bedrooms, nurseries, basements, warehouses, or greenhouses without going back and forth.【4 Flexible Placement Options】Place it flat on a desk, attach it to metal surfaces with the built-in magnet, mount it on a wall, or use the included adhesive backing for flexible installation on different surfaces.