This three cassettes infrared dryer has 4 different model to suit different drying requirements. 

B3EA is the most economic model with mechanical timer, features full baking and power adjustable function. 

B3 is the stand model with pre-heating and full baking function;

B3S is the advanced model with pre-heating, full baking and with ultrasonic distance sensor for more precise curing. 

B3ST is the most advanced model with pre-heating, full baking and with ultrasonic distance sensor as well as the temperature sensor 

Those all 3 models adopts infrared quartz tube, which life span up to 6000 hours under normal use. 

Also support signal cassette for spot curing to save emerge. Tall enough for roof painting and the match tire chassis.