Built around the listed product details, Auto Truck Voltage Circuit Tester 6V 12V 24V DC Digital Display Long Probe Pen L is categorized under LED battery monitors for battery connection, charging, testing or status monitoring. Notable details stated in the listing are 6V, 12V, and 24V. Choose the required color from the listed configurations, including A 6-24v, B 6-24V, and C 6-24V. The product title centers on truck voltage circuit tester 12v, giving shoppers a clearer way to compare this item with related LED battery monitors. Always compare the product photos and specification fields with your vehicle and intended application before purchase.