Description: The thermo-hygrometer can measure indoor and outdoor temperature at the same time. It can be seen that the outdoor sensor is placed at a distance of 100m/328ft to measure the data, and the outdoor temperature can be checked on the indoor host. Features: Useful: The hygrometer thermometer help to adjust the humidifier, dehumidifier settings, humidistat, etc. Accuracy: Digital hygrometer provide updated and accurate readings. Data measurements are updated every 2s to give you the latest changes in the environment. 3 Install Ways: The digital hygrometer with magnet attaching, table standing, and wall hanging hole design, put anywhere you want. Easy to Read: The humidity gauge has a bright front panel with a clear LCD display, easy to read even from a far distance. Widely Applicable: Suitable for kitchen, garden, greenhouse, basement, room, guitar room, and office. Specifications: Color: White; Black (Optional) Material: ABS, Electronic Component Style: Casual Indoor Temperature range: -10+50 & 14+122 Outdoor Temperature range: -40+70 & -40+158 Humidity range: 20%RH95%RH Wireless reception range: 328ft/100m Wireless frequency: 433MHz Power Supply: 2*AAA Battery(Not Included) Occasion: Home, Hotel, School Package Size: 17*14*3.3cm / 6.69*5.51*1.29inch Package Weight: 215g / 0.47lb Package List: 1 * Electronic Temperature Humidity Meter 1 * Outdoor Sensor 1 * User Guide