Vertical temperature control box high and low temperature alternating test box double 85 test $r $n high temperature simulation: can be set and stably output high temperature environment according to requirements (common range -20 ℃~150 ℃, -40 ℃~180 ℃, etc., depending on the model), simulate the state of the product during high temperature storage and operation. Low temperature simulation: capable of creating low-temperature environments as low as -70 ℃, -100 ℃, or even lower, to assess the performance stability of products at low temperatures (such as low-temperature starting of electronic components, low-temperature brittleness of rubber, etc.). $r $n high and low temperature cycle: supports setting cycle programs such as "high temperature → low temperature → high temperature" to simulate the product's temperature alternating cycle