Xcellent Global Wireless Indoor/ Outdoor Thermometer and Hygrometer Sensor, Black + Siver HG110 Displays indoor and outdoor temperatures and humidity, also with the date, Moon phase and alarm & snooze function. Display stands upright for tabletop use or is wall-mountable. Display the temperature in Fahrenheit or Celsius The outdoor sensor features powerful wireless technology, low battery indicator light, and an integrated hanger for easy mounting. Indoor temperature range: 0~50/ 32~122 ; Outdoor temperature range: -40~70/ -40~158; Accuracy: 1.5/ 35; Transmission range up to 100 feet. Package include: 1x Thermometer: 2x AAA battery required (not include), 1x Remote: sensor 2x AAA battery required (not include), 1x Manual.