The XCH-SD Series Walk-in Constant temperature and humidity test chamber is widely used to test the heat resistance, cold resistance, dry resistance and humidity resistance of materials. Suitable for electronics, electrical appliances, communications, instruments, vehicles, plastic products, metals, food, chemicals, building materials, medical, aerospace and other products. Temperature Range: 20~ 50℃ Temperature Fluctuation:≤ ±0.5℃ Temperature Deviation:≤ ±1.0℃ Humidity Range:40~80%RH(or 20~80%RH) Humidity Deviation:≤ ±3.0%RH