What crops need a thermometer?

Temperature is different, different plants need living in tropical plants requires higher temperature, is probably the most suitable temperature at 25 37 degrees Celsius; Frigid zone of plant growth and the most suitable temperature in 11 - probably 23 degrees Celsius. Temperate plants of life, life in winter and in summer the plants to the requirement of temperature is different also. In order to better control the temperature of the crops, what crops need that thermometer? Below small make up to tell you, crops need thermometer is the maximum and minimum thermometer, the thermometer is used to record in a certain period of time the maximum temperature and minimum temperature in the air. Model: MMG - Three types: structural style of the maximum and minimum thermometer: can flip eaves, circular button material: beige ABS shell shape size: 22 * 13 cm temperature range: - 40 - 50 c, red and black single calibration accuracy: + / - 1 c note: the maximum and minimum thermometer when use, transport and storage should be upright, not from vibration so as not to cause of the use of mercury.