Features 1.Fast and running speed with -32 chip set hardware 2.Accurate test results, using high precision amplifier and calibrated by professional battery testing tool, BST100 reading accuracy up to 99%. 3.Wide testing range cover from 100- 2000 , 3- 220 AH, best in the market. 4.Industry initiative graphical battery voltage real time monitoring, can be analysis battery data more accurate. DY220B Function 1.Identify battery status Good or Replace 2.Check Battery Capacity - Cold Cranking Amps (), DIN, EN and IEC information relative to battery rating. 3.Check Internal resistance value (Ohm) 4.Display battery life in percentage (%) 5.Battery Cranking Test, load test 6.Battery Charging Test, Ripple Test 7.Support battery ripple test and review test data Unique battery results display in percentage and meter mode. Test all automotive cranking lead acid battery, including ordinary lead acid battery, flat plate battery, spiral battery, and Gel battery, etc. Material: PC Color: as shown Package Contents: 1 x DY220B car and motorcycle battery testing 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.