This new car relay tester is designed for checking 12V and 24V automotive electrical systems and comes with a removal tool for added convenience. It can be useful for buyers who want a practical tool for diagnosing relay and battery-related voltage issues on cars and other compatible vehicles. Free shipping is included, which may help when comparing total purchase cost. This item may suit DIY vehicle owners, small garages, or anyone building a basic auto electrical tool kit. Before buying, confirm compatibility with your intended vehicle system and relay types, since detailed fitment information is not provided here. Check the listing for full details. Car Relay Tester Voltage Tester 12V 24V Car Battery Checker Auto w/ Removal Tool. Condition: New. Listed at 16.61 USD. It Allows Quick Relay Function Checks During Vehicle Inspection And Repair. The Tester Automatically Detects The Relay Pin Layout And Displays Results Via A Clear Led Indicator, With Green For Normal Operation And Red For Faults.