New generation Stroboscope. Digital synthesis circuit, high stability and high adjustment resolution. Range : 60 to 32,000 RPM. Adjustment resolution : 0.1 RPM ( 1,000 RPM ), 1 RPM ( 1,000 RPM ) High intensity light. Setting button : digital rotate button, X 2 button, 2 button, + button, - button, easy to adjust the desired RPM.