Eachine1 Lutron Dt-2235a Contact Speed Digital Tachometer & Auto Ranging

Description : LUTRON DT-2235A Contact Speed Digital Tachometer & Ft/Min M/Min Auto Ranging Including Batteries Specification : DT-2235A Range 0.5 to 19, 999 RPM Surface Speed (m/min.) : 0.05 to 1, 999.9 m/min Surface Speed (ft/min.) : 0.2 to 6, 560 ft/min Resolution RPM 0.1 RPM < 1,000 RPM 1 RPM More than 1,000 RPM 0.01 m/mim < 100 m/min Surface 0.1 m/min More than 100 m/min Speed 0.1 ft/min < 1000 ft/min 1 ft/min More than 1,000 ft/min Display 5 digits, 10 mm ( 0.4" ) LCD Accuracy +/- ( 0.05% + 1 digit ) Sampling Time 1 second ( 6 RPM ) Time base Quartz crystal Circuit Exclusive one-chip of micro-LSI circuit Battery 1.5 V AA (UM-3) battery x 2 Pcs(Included battery) Operating temp. 0 to 50C ( 32 to 122F) Memory Last value, Max. value, Min. value Size 208 x 72 x 37 mm (8.2 x 2.8 x 1.5 inch) Weight 280g (0.62 LB)/including battery Accessories Carrying case; 1 PC RPM adapter (CONE); 1 PC RPM adapter (FUNNEL); 1 PC Surface speed test wheel; 1 PC Operation manual; 1 PC surface speed wheel Package Includes : 1 x Contact/Surface Speed Digital Tachometer 2 x 1.5 V AA (UM-3) Battery 1 x Slide-In Contact Adapter 1 x Surface Speed Test Wheel 1 x Funnel Tip 1 x Cone Tip 1 x Operation Manual Details Pictures : (Ignore the DT-2235B+ on the pictures, it will send for you the DT-2235A, with the same appearance and function.)