Constant temperature and humidity test chamber(also called climatic test chambers or humidity and temperature controlled test chamber) simulate and provide different natural environments like high temperature, low temperature, moisture, cold, hot for steady-state stability testing, basic temperature cycling and accelerated Model: 150CH~500CH Temp.Range: 10℃~60℃ Humi.Range: 50~90%RH Environment temperature: +5 ~ 35℃ Temperature Fluctuation: <±0.5℃ Temperature deviation: <±2.0℃ Humidity deviation: < ±5%RH Power: AC 220V±10% 50HZ