TACHOMETER The new CHECK-LINE ET-2109 explosion proof tachometer is certified EEx ia IIC T4 - ATEX II 2 G to allow for use in a wide range of hazardous environments including petrochemical, Gas & volatile materials processing industries. The simple 3 pushbutton operation and the large clearlyreadable display with over-head facility enables a wide, flexible field of application. This light-weight device provides an easy one handed operation and facilitates the carrying-out of measurements after which it can be stowed away in the tool box or jacket pocket. Operation ON button – Auto-Off after 1 min. HOLD function for 1 min. after releasing button Programming function using 3 buttons Statistic functions (min, max, average) Display 5 digit large display LOW-batt. display pulse recognition function mode Features Explosion-Proof Housing Vertical display with 180° inversion capability Memory holds last reading for 1 minute Includes calibration certificate Ex designation: II 2 G EEx ia IIC T4 The ET-2109 is supplied as a complete kit tachometer reflective tape contact adapter calibration certificate instruction manual (english) 4xAAA batteries all in a hard plastic carrying case