1. Using PID to control temperature, and the error is no more than 1 2. Hot-air dryer have thermocouple section accidentally alarm, high temperature alarm, overload protection and so many other kinds of safety protection. 3. Double digital displayer which can directly show the setting temperature and actual temperature. 4. Automatically delaying in turn on the electrotherma and shutdown of fan upon starting up and turning off 5. Lightly touching to controlling, one key press to starting up. 6. Hot-air drying machine also take environment protecting as a key point, our equipment reduce pressure loss to prevent air pollution and protect the surrounding environment. Capacitykg : 12 Heation kg : 1.8 Blowerw : 50 Dimensions cm : 64¡Á 44¡Á 76 Base diza cm : 11¡Á 11¡Á 4 22. NetWeight kg : 22.