Digital thermohygrometer with remote sensor of long sensing range, very accurate and can be widely used indoor or outdoor. Features multiple data display, weather forecast, alarm clock and snooze, backlight and alarm function, and so on. A perfect choice of temperature and humidity monitoring for baby room, bedroom, study room, office, greenhouse, wine cellar, warehouse, etc. Features: [Indoor Outdoor Thermohygrometer] The main unit supports up to 3 remote sensors, about 100m (328ft) transmission range in open area without obstacles. Suitable for indoor and outdoor places such as bedroom, baby room, office, greenhouse, wine cellar, warehouse, etc. Easy installation, tabletop or wall hanging design. [7.4" Large Color Screen] Digital color screen displays time, calendar, atmospheric pressure, indoor and outdoor humidity/ temperature and weather forecast, more intuitive, easy to read no matter in the day or at night. 3 levels of backlight brightness adjustable when power by AC 5V power interface. [Alarm Clock with Snooze] Features alarm clock function, press snooze button to get extra sleep time (5-120 minutes adjustable). [Weather Station] 6 kinds of weather forecast, including Sunny, Half Sunny, Cloudy, Rainy, Rainstorm, and Snowy. [Upper/ Lower Alarm Setting] Indoor and outdoor temperature and humidity upper and lower limit alarm values can be set; when reaching the alarm value, the alarm sign of the corresponding channel will flash and it will beep for 5 times per minute. [12H/ 24H & / Switchable] 12 or 24 hours time format switchable. Change the temperature display to or . [Power Supply] 3 * 1.5V AAA battery or AC 5V power supply for the main unit; 2 * 1.5V AA battery to power each remote sensor. (Batteries are not included) Note: Size and color may be slightly different because of manual measurement and different light conditions. Thanks for understanding. Specifications: Color: Black & Silver Material: ABS Screen: Digital Screen with Backlight Indoor Temperature Range: -10~50 (14~122) Outdoor Temperature Range: -40~70 (-40~158) Humidity Range: 10%-99% RH Temperature Unit: / Selectable Indoor Temperature/ Humidity Detection Cycle: 30S Weather Forecast: Yes Atmospheric Pressure Range: 23.62InHg~32.48InHg (800hPa~1100hPa); Default: 29.92nHg (1013hPa) Transmission Range: about 100m/ 328ft (open distance without obstacle) Power Supply: Receiver: AC 5V Power Supply or 3 * 1.5V AAA Battery (Not included); Transmitter: 2 * 1.5V AA Battery (Not included) Receiver Size: 207 * 135 * 24mm / 8.15 * 5.31 * 0.94in Transmitter Size: 125 * 46 * 25mm / 4.92 * 1.81 * 0.98in Package Size: 22 * 14.5 * 7.5cm / 8.66 * 5.71 * 2.95in Package Weight: 635g / 1.40lbs Package List: 1 * Weather Station (Receiver) 3 * Remote Sensor (Transmitter) 1 * USB Cable 1 * User Manual (English)