Feature: 1. 1. Newly designed patented shell, which can be hung on the wall or stand for work. 2. 2. Double alarm clock, alarm repetition (working days and rest days) and snooze function (snooze time: 5-60 minutes can be set). 3. 3. Sunrise/sunset time of 251 cities around the world. Set the city, time zone and latitude and longitude to display the sunrise/sunset time. Show the 12-level moon phase and 3-level tide. 4. 4. Display indoor level 3 mildew risk warning. Display indoor and outdoor comfort level 5. With indoor and outdoor temperature and humidity upper and lower limit alarm and frost point alarm functions. OUTDOOR remote wireless transmitter is attached, which supports receiving up to 3 sets online at the same time. 5. 5. Temperature display format selection (℃/℉). It can detect the trend change of temperature and humidity. Check the indoor and outdoor records of the maximum and minimum temperature and humidity on that day. 6. 6. The bar chart shows the trend of atmospheric pressure in the past 3, 6, 9, 12, 18 and 24 hours. Check the trend change of level 3 air pressure. 7. 7. Backlight function: when the battery is powered, the backlight lights up for 15 seconds. When DC-POWER supplies power, the backlight is divided into 5 levels of brightness (high → low 4 levels, off). With night exposure mode (adjust brightness intelligently according to dim ambient light) Specification: Smart weather station can support up to 3 outdoor sensors, which gathers data precisely, and transmits quickly to indoor receiver. 3 remote sensors temperature and humidity displayed at the same time. Maximum /minimum value record of temperature and humidity. The delivery package is equipped with a sensor by default, and if you need more sensors, you can contact customer service to place an order manually. Features: 1. Newly designed patented shell, which can be hung on the wall or stand for work. 2. Double alarm clock, alarm repetition (working days and rest days) and snooze function (snooze time: 5-60 minutes can be set). 3. Sunrise/sunset time of 251 cities around the world. Set the city, time zone and latitude and longitude to display the sunrise/sunset time. Show the 12-level moon phase and 3-level tide. 4. Display indoor level 3 mildew risk warning. Display indoor and outdoor comfort level 5. With indoor and outdoor temperature and humidity upper and lower limit alarm and frost point alarm functions. OUTDOOR remote transmitter is attached, which supports receiving up to 3 sets online at the same time. 5. Temperature display format selection (℃/℉). It can detect the trend change of temperature and humidity. Check the indoor and outdoor records of the maximum and minimum temperature and humidity on that day. 6. The bar chart shows the trend of atmospheric pressure in the past 3, 6, 9, 12, 18 and 24 hours. Check the trend change of level 3 air pressure. 7. Backlight function: when the battery is powered, the backlight lights up for 15 seconds. When DC-POWER supplies power, the backlight is divided into 5 levels of brightness (high → low 4 levels, off). With night exposure mode (adjust brightness intelligently according to dim ambient light) Specifications: Time calendar shows: January 1, 2000 ~ December 31, 1999. Time standard is 12HR/24HR 8 languages show the week and three-character month abbreviations: Britain, Germany, France, Italy, Spain, Netherlands, Denmark and Poland. Temperature detection range: INDOOR：-9.9℃ ～ +50℃ & +14℉ ～ +122℉ OUTDOOR: -40℃ ～ +70℃ & -40℉ ～ +158℉ Indoor and outdoor humidity detection range: 20% ~ 95% Indoor temperature and humidity detection cycle: 60 seconds/time. Selection of air atmospheric pressure unit: mb/hPa or inHg. Air atmospheric pressure display range: 600 HPA/MB ~ 1100 HPA/MB & 17.72 INHG ~ 32.48 INHG. 6 kinds of weather forecast: sunny, cloudy, cloudy, light rain, heavy rain and snowy days. Power Supply: Host: 2 * 1.5V AAA alkaline battery (excluding), DC5V 1.2A power cable (including) Sensor: 2 * 1.5V AA alkaline battery (excluding). Material: ABS Item Size: 17.2 * 14 * 2.7 cm / 6.77 * 5.51 * 1.06 inch Sensor Size: 9.7 * 3.2 * 5 cm / 3.82 * 1.26 * 1.97 inch Package Size: 18.6 * 15.3 * 7 cm / 7.32 * 6.02 * 2.75 inch Package Weight: 533g / 18.8oz Package List: 1 * Temperature and Humidity Meter 1 * Sensor 1 * Power Cable 1 * User Manual (EN/DE/FR/IT/ES) Package List: 1 * Temperature and Humidity Meter 1 * Sensor 1 * Power Cable 1 * User Manual (EN/DE/FR/IT/ES)