High and low temperature test chamber (with operator) Product purpose: Suitable for reliability testing of industrial products at high and low temperatures. Inspect the performance indicators of components and materials of electronic and electrical products, automobiles and motorcycles, aerospace, marine weapons, universities, research institutions, and other related products under high and low temperature (alternating) cyclic changes. The product has a wide temperature control range, and its performance indicators meet the technical requirements of the national standard GB10592-89 high and low temperature test chamber. It is suitable for conducting low temperature, high temperature tests, and constant temperature tests on products according to GB2423.1 and GB2423.2 "Environmental Testing Methods for Electrical and Electronic Products - Test A: Low Temperature Test Method, Test B: High Temperature Test Method". Product features: 1. Adopting French Taikang fully enclosed compressor or German Bitzer semi enclosed compressor (ensuring machine performance reliability) 2. Refrigerant R22+R23 (environmentally friendly, with an ozone depletion index of 0) 3. Refrigeration system's cooling capacity adjustment, gas-liquid bypass adjustment, evaporation temperature adjustment, etc. At any low temperature point, there is no need for heating balance, and the operating power can be reduced to half, reducing the operating cost of the refrigeration system .....