Should use what kind of thermometer in vegetable greenhouses?

With the constant progress of the society, the continuous development of science and technology, and other See the day to eat & throughout; Many of the conditions of different level improved. Vaguely remember, a little boy, watermelon is the standard of summer, is only in the winter can eat cabbage. I don't know what time to start, a lot of vegetables and fruits can last, no limits the season. Temperature control is vital for the seedbed management in the greenhouse planting. Good control of temperature, young plants can thrive. Generally in greenhouses with special thermometer to real-time monitor the temperature of the thermometer is also called greenhouse thermometer, our common greenhouse thermometer generally as shown in the figure below. Model: MMG - 3 types: maximum and minimum thermometer, greenhouse structure: the thermometer can flip eaves, elliptic button material: beige ABS shell shape size: 22 * 13 cm temperature range: - 40 - 50 c, red and black single calibration accuracy: + / - 1 c is important to note that such a greenhouse thermometer, if directly in the sun, to measure the surface temperature of the thermometer, because sunlight surface thermometer is heated, the temperature is generally higher than the surrounding temperature, the measurement of the thermometer features determines the measurement results of this case is a temperature rather than the surrounding air temperature on the surface of the thermometer. Poorly ventilated place because heat is inadequate, the air temperature can only reflect the status of local temperature, and temperature have the obvious difference. So you need to shed a thermometer in a cool ventilated place, which ensures that the measured temperature of the surrounding.