Dolked 3 In 1 Indoor And Outdoor Thermometer Hygrometer Barometer Humidity Tester

Features:Function: The product is used to measure the changes of parameters such as temperature humidity and atmospheric pressure in the environment and accurately predict the future weather changes according to the changing trend of ambient temperature humidity and atmospheric pressure. It is a fully functional household weather meter (Qingyu) table). Features: Alloy aluminum outer ring using EU standard movement dial with imported aluminum-magnesium alloy once stamped PMMA plastic lens adjusting wheel multi-function display large display panel double scale with weather change logo Measuring range: -20 ~ 60C 0 ~ 100% RH 970 ~ 1050hPa Resolution: 1C 2% RH 1hPaMeasurement accuracy: ±2C，±5%RH(40~70%RH) ±5hPa(970~1050hPa) Parameters:Size(approx.): Surface diameter: 13.2cm/5.20inThickness: 3.5cm/1.38in Movement type: mechanical Packing: boxed Packing List:1* thermometer Note:Test the thermometer tips:1. Look at the change in temperature: put it in an environment with a large temperature difference between room temperature for a while and see the thermometer will have obvious pointer changes. For example put it in the refrigerator because the mechanical movement changes slowly it takes a long time to change slowly.2. Look at the change of humidity: You can take a big breath at the bottom of the back of the product and you will see the change of the humidity pointer. After a while the pointer will fall back.The thermometer meets the above two points and is a normal product. Please feel free to use! Thank you3. Look at the change of air pressure: Due to different pressures in different places the position of the pointer is different. In some areas it is also possible to encounter a situation where the pointer with low air pressure is biased to the bottom of the range. The change of air pressure changes more slowly. Generally when the weather changes from sunny to rain or from rain to clear it will change obviously. Therefore if you do not see the pneumatic needle please turn the contrast pointer to the same position as the air pressure pointer then be patient. Wait a few days.