Check the listing for details. Lisle Tool 29050 Digital Polarity Circuit Tester. Condition: New. Listed at 49.99 USD. *************************** Lisle Tool 29050 Digital Polarity Circuit Tester Description Operating range of 3-30 volts DC to work on most vehicle electrical systemsTwo LEDs provide 360 Degree visibility of polarityThe red light indicates positive polarity, green indicates negative polarityHeavy-duty alligator clamp for secure connectionsThe probe is insulated to prevent the possibility of shorting the side of the probe to other components Computer safe Brand New and Never Been Used! Still in Original Packaging. WE SHIP WORLDWIDE! FREE SHIPPING in the USA! CBM TOOLS SHIPS THE DAY YOUR ORDER IS CONFIRMED! Handling Time is 1 Business Day of receiving your payment. Actual shipping time varies depending upon your location. We ship from Oregon and QUALITY IS GUARANTEED! We here at CBM TOOLS strive to provide 5-STAR Service every day. Your personal satisfaction is guaranteed on all products we sell. Visit our E-Bay Store for more, GREAT PRODUCTS @ GREAT PRICES!