Internal Material : AISI SS 304, Stainless Steel / FRP, Mirror Polished Stainless Steel Outer Material: Fiberglass, FRP, Non-Corrosive Material Temperature Range: Ambient to 40°C / Ambient to 60°C Humidity Range: 95% - 98% Humidity Accuracy: ±1% RH, ±2% RH Temperature Controller: Digital PID Temp Microprocessor PID Controller PLC with HMI Touch Screen (Data Logging & Programmable Temp & RH) Humidity Controller: Digital PID Temp Microprocessor PID Controller PLC with HMI Touch Screen (Programmable Temp & RH) Capacity: 100 - 1000 liters / 1000 - 2000 liters Automation Grade: Optional Safety Features: Integrated Safety Mechanisms.