Sold by CTEK, the 12V Battery Analyzer tests the condition of all types of 12V lead-acid batteries including Wet, Maintenance Free, Ca/Ca, Gel and AGM with high accuracy. Easy to use, it provides fast and easy-to-understand results. Operating voltage range is 8û15V with a test range of 200û1200EN. Simply connect the clamps to the battery and follow the step-by-step instructions on the display. The easy-to-read display gives clear information on the condition of any 12V lead-acid battery and advises what action is required. With no need to disconnect the battery from the vehicle, the patented technology used by the CTEK Battery Analyzer is safe for the user and vehicle electronics. It is reverse polarity protected, creates no battery loads, heat or sparks. Features include ease of use ù simply attach to the battery (no need to disconnect) and follow the on-screen instructions, provides fast, accurate results ù the CTEK Battery Analyzer tests the battery in seconds providing an instant on-screen result which advises what action should be taken, safe ù the patented technology not only provides fast, accurate results but undertakes the test without placing a load on the battery and generates no potentially dangerous heat or sparks and works equally well with all lead-acid battery types and requires no adjustment to perform an accurate test. This product carries a two-year warranty.