Buyers should remember: alarm clocks cannot use high-capacity alkaline batteries, please use ordinary carbon batteries, high-capacity batteries are easy to burn the circuit board!Buyer size product: 150 * 62 * 110 MMProduct packaging size: 15.8 * 6.3 * 12 CMProduct with unit packaging weight: 214gProduct description:1. When using dry batteries, the display screen cannot always be turned on. When the light is off, the display screen is black and difficult to see. The display screen is always on when power is used.2. The time has no memory function, and the time needs to be reset after power off.3. Compared to professional thermometers and hygrometers, there are errors. The weather forecast is for reference only.The display screen faces the person's face and the projection arm rotates towards the person. rear of the fuselage. The projected font is positive, which means that when the direction of the person's line of sight is the same as that of the projection arm, it is positive, and vice versa. Ergonomic thinking is designed.When the projection clock is 2 meters away from the receiving wall or ceiling, the height of the projected font is about 20cm When the projection clock is 6 meters away from the receiving wall or ceiling, the height of the projected font is about 60 cmFeatures:Plan A (without food). The battery will consume more power, and the projection and screen will automatically disappear after a few seconds. If you want to see the time, you need to press the top "LIGHT" button again.Plan B (with power): Powered by AC transformer, ordinary mobile phones, projection and screen are always on (no shutdown function), you can directly watch the time without pressing again.The battery and power supply cannot be used at the same time, otherwise the alarm clock will be damagedHigh capacity battery will cause alarm discomfort due to high voltageCompared to professional thermometers, there are errors, weather forecast is for reference only.The time needs to be reset after a power failureFunction: projection function 180 degree rotation time LCD color screen, temperature and humidity display, weather display using silicone buttons, feel better than the original plastic buttonsFood: 2 * AAA (not included in delivery) or adapter power supply, the adapter power supply can illuminate the screen for a long time and the screen resolution is higher 1. Temperature and humidity display2. Depending on temperature and humidity parameters. Forecast the current state of the weather. Displayed as iconsFeaturesLCD color screen, LED backlightProjection timeProject display humidity and temperature: automatically detects and displays the current environmental humidity and temperature(Humidity range: 20% RH99% RH; temperature range: 0degC + 50degC / 32degF 122degF)Maximum / minimum temperature and humidity recordingAlarm / snooze functionTips1. When using the data cable, the backlight is always on; When using the battery, the backlight of the wake-up screen will be on for about 8 seconds and the automatic light will turn off. When the product is connected to the data cable, the battery immediately stops supplying power. The product does not have a memory function and must be readjusted after a power failure.2: The sensor is indoor temperature and humidity. Weather forecasts are also based on the analysis of indoor temperature and humidity. The data will have errors and is for reference only.3: Temperature and humidity measurement range: (measurement will have errors)Temperature: 0 -60 (14.2 F-140 F) Humidity: 20% -99%The product automatically detects temperature and humidity approximately once every 60 seconds