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! Product size: 150*62*110MM Product packaging size: 15.8*6.3*12CM Product with unit packaging weight: 214g Product description: 1. When using dry batteries, the display screen cannot always be lit. When the light is off, the display screen is black and difficult to see. The display screen is always on when the power is used. 2. The time has no memory function, and the time needs to be reset after power off. 3. Compared with 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 toward the 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 20 cm. When the projection clock is 6 meters away from the receiving wall or ceiling, the height of the projected font is about 60 cm. Features: Plan A (without power supply). 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 supply): Powered by an AC transformer, ordinary mobile phones, the projection and screen are always on (no shutdown function), you can directly check the time without pressing it again. The battery and power supply cannot be used at the same time, otherwise the alarm clock will be damaged. The high-capacity battery will cause alarm discomfort due to high voltage. Compared with professional thermometers, there are errors, the weather forecast is for reference only. The time must be reset after a power outage. Function: 180 degree rotation time projection function. LCD color screen, temperature and humidity display, weather display using silicone buttons, feel better than the original plastic buttons. Power supply: 2 * AAA (not included in the scope of delivery) or adapter power supply, the adapter power supply can illuminate the screen for a long time and the screen resolution is higher. 1. Display temperature and humidity 2. According to the temperature and humidity settings. Predict the current weather status. Displayed as icons Features LCD color screen, LED backlight Projection time Humidity and temperature display: Automatically detects and displays the current environmental humidity and temperature (Humidity range: 20%RH～99%RH; Temperature range: 0degC～+50degC / 32degF～122degF) Maximum/minimum temperature and humidity record Alarm/snooze function Tips 1. 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 lighting will turn off. When the product is connected to the data cable, the battery will immediately stop supplying power. The product has no memory function and needs to be readjusted after a power failure. 2: The sensor is the indoor temperature and humidity. The weather forecast is 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: (the measurement will have errors) Temperature: 0 ℃ -60 ℃ (14.2 F-140 F) Humidity: 20% -99% The product automatically detects the temperature and humidity once every 60 seconds or so