Mechanical / motor for high and low temperature test box is mainly used in electronic and electrical engineers, automobile and motorcycles, aerospace, ship weapons, higher schools, scientific research units and other industries and areas, it and the difference between the thermostatic and humidity box is not able to do humidity related testing, is an experimental testing equipment only used for high temperature, low temperature (switching) cycle changes. A ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n