Usage Tips:Features：1、Temperature and Humidity Sensor: Self sensing should measure the range of air humidity and temperature, automatically judge and display temperature and humidity values, and freely switch between Degree C/Degree F. 2、Monitor Temperature and Humidity: The solar battery dual energy alarm clock can easily monitor temperature and humidity at home, in greenhouses or offices. 3、Timer Function: The alarm clock with temperature and humidity has a timer function that can measure temperature and humidity. 4、Easy to Read: A clear LCD is easy to use and read. Large numbers provides better visibility and clear readings. Battery solar alarm clock is made of ABS plastic material, which is durable. 5、Wide Applications: Battery solar alarm clock is suitable for homes, offices, schools, hotels, laboratories, kindergartens, kitchens, gardens, greenhouses, basements, and baby roomsSpecification：Item Type: Battery Solar Alarm ClockProduct Material: ABSWeight: Approx. 267g / 9.4ozBattery Type: 1 x AAA Battery (Shipped Without Battery)Package List：1 x Clock 1 x User Manual