oom, laboratory, caves, warehouses and other places to do and humidity control purposes. Ex logo ExdIIBT4. ◆Product features:easy installation, simple operation;manual and automatic control methods are two choices; the ambient temperature (for temperature 18-32 °c) and low temperature (for temperature 5-32 °c) for the user to selec two models;can control room temperature;use explosion-proof type compound, safe and reliable;dehumidification efficient, effective and significant;◆Technical para