ELECTRIC PAINT SPRAY GUN - HIGH POWER SPRAYER - PAINTERS TOOL New Stroke Adjustment Knob - obtain the correct atomization of the paint and control the force of the spray. Fast Action Trigger - instant control of spray. Non-Conductive Housing - safe from electrical hazzard. Heavy Duty Spark-Free Motor - reciprocating motor prevents spark and is built to last through hundreds of hours. Viscosimeter - simple failproof cup designed to measure the thickness and density of your paint. get it perfect everytime