The Master Appliance Proheat STC Dual Mode Heat Gun, No. PH-1610, combines STC surface temperature control technology with standard electronic heat gun capabilities. This heat gun offers the STC mode and the standard mode. The STC mode speeds up the heating process, allows locking of the target surface temperature and airflow settings and more. The standard mode provides dial-in temperatures from 170-degrees F to 1,000-degrees F, airflow from 4 cfm to 16 cfm, allows locking temperature and airflow settings for supervisory control and much more.