Hand Held DC System Tester At-a-glance testing of batteries, on-board charger, alternator / regulator output 6 Easy to read LED Indicators Compact lightweight design WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.