Instrument Description: 1. Capacitive pick-up; Secondary Function/Capture button; Ignition System button; Main Function/Calibrate button 2. Flexible probe 3. Protective rubber 4. LCD Display 5. Power ON/OFF/RESET button; Engine Cycle button Specifications: Why choose MST-1000 ? 1. Minimun & Mximun Fuctions(For COP & SPW Modes) The MST-1000 maintains a continuous record of the minimum and maximum readings of the function currently . To display the Minimum and Maximum readings of the main display, if not already 'Secondary Function/Capture' Button momentarily. To reset the Minimum and Maximum readings, the 'Power ON/OFF/Reset' button momentarily. These values are also rest when turning to "0" 2. Spark KVOLT Calibration Fuction(For COP Mode Only) The MST-1000 requires the user to calibrate the instruments in order to measure spark KVOLT in coil on plug and coil near plug ignition systems. This calibration uses the measurement values obtained during the procedure to find the optimal measuring parameters or a particular type of ignition module, and compensates for differences in waveform and signal strength. Once the MST-1000 has been calibrated on one of the ignition modules of the engine being diagnosed, all the subsequent measurement of spark KVOLT be relative to the calibration value. Material: plastic colour: Black+blue Package Contents: 1 x Automobile Ignition Coil Test Tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.