The hot key feature allows access to the menu with one-touch functionality. battery in top condition with battery tools & accessories from Harbor Freight. Technicians can view freeze frame data, and a patented vehicle health monitor LED makes it simple to check for emissions readiness. 12V Deluxe Battery Maintainer and Float Charger. The ZR4s features an option to display in English, French, or Spanish, and it displays 20 data points at once on the 2 in. It’s compact, convenient and quickly reads and clears basic trouble codes and lights on virtually all Domestic, Asian and European vehicles, light truck, minivan, or SUV manufactured since 1996. The ZURICH® ZR4s OBD2 Code Reader is ideal for service writers and weekend mechanics.