• All the popular testers in one clamshell at 10% savings
• Included testers for vehicle side trailer connections
• # 7893 - 7-Way Flat Pin Trailer Circuit tester
• # 7865 - 7 Round Pin Circuit Tester
• # 8000 - 3-Way Trailer Adapter (7 Flat Pin to 6 Round Pin and 4/5 Pin)
• # 7897 - 6 Round Pin Trailer Circuit Tester
• # 7866 - 4/5 Pin Harness Checker