Features: This touch display indoor/outdoor thermometers hygrometer combines clock precise with DCF radio controlled timekeeping, offering real time weather forecasting and double temperature/humidity monitoring for home environment control. Featuring touch controls, clear indoor/outdoor data separation through house/tree icons, and customizable 12H/24H clock display, it delivers frosts alerts, comfort levels indicators, and 12 24hr weather predictions. Ideal for weather conscious homeowners, parents monitoring nursery conditions, and gardening enthusiasts requiring precise greenhouse climate data. Perfect for bedrooms, living rooms, offices, or greenhouses where fast access to humidity levels, temperature trends, and window opening recommendations ensures optimal comfort. Expandable with 3 wireless sensors (sold separately), this black plastic Thermometers features 20 second backlight activation, low battery alerts, and continuous environmental tracking for whole home climate management. Specifications: Component:Plastic Host: 137x21x86mm (5.4'×0.8'×3.4in) Transmitter: 60 x 27 x 96mm (2.36' x 1.06' x 3.78'in) Color: Black/White Package Includes: 1 Set Digital Thermometers note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.