Thermometer is most commonly used as a greenhouse thermometer and an ideal tool for observing temperature variationsThe outdoor planting thermometer has clear scale for easy reading and recording br/>Plant wall thermometer has hanging hole, which can be placed at will to meet your different requirements without taking up spaceDigital garden thermometer has a removable dust cover , which can also be used as a stand at the bottomGarden Greenhouse Thermometer is mainly made of strong and durable ABS and glass material for long service lifehermometer Garden greenhouse with fine workmanship and good performance can record the maximum air temperature and minimum temperature at a specific time. Thermometer is a high and low memory thermometer, lightweight and easy to use. Size: 24x8cm / 9.45x3.15inch.Red numbers are below zero, black numbers are above zero.The Blue color increases exponentially with the change of temperature. When the temperature drops, the blue pointer will not change with the temperature drop, indicating the maximum or minimum temperature.