
All you have to do is connect the small clamps to the relay and connect the battery clamps to the battery. This little tester actually figures out how the relay is connected and then runs the tests. I have no idea how it's done, but the person who came up with this must be a genius! I would love to meet this guy! I've tried this on many different relays and it works great. I've even tried tricking him by messing around with the insides of two relays, but he always identifies good and bad relays. This is the perfect tool! Lisle has a wide range of quality instruments but I think this one is the best! You must buy one!

5-Pack 12V/20A Red LED Illuminated 3Pin HOTSYSTEM Rocker Toggle Switch SPST ON/Off Carbon Fiber Cover For Car Truck Boat Motorcycle
45 Review

HOTSYSTEM 5 Blue + 5 Red + 5 Green Dot LED Light Round Rocker Toggle Switch SPST On-Off Control For Car Truck
24 Review

Portable bluetooth speaker BT Speaker ZQS-8210 high power universal
35 Review

Illuminate Your Ride With HOTSYSTEM'S Blue LED Toggle Switch - Perfect For Car, Motorcycle, Boat, And More!
37 Review

1.5 Inch Leveling Lift Kit Compatible With 2004-2022 F150,Leveling Lift Kit Fit For 2004-2022 F150 2WD 4WD Forged Front Strut Spacers Raise The Front Of Your F150 By 1.5
13 Review

2 Vepagoo 10In 13Lb/58N Gas Shock Spring Strut Lift Support For Cabinet Door Truck Tool Toy Box Lid - C16-03213
13 Review

Tire Michelin ENERGY XM2+ 185/65 R15 88 H
30 Review

MICHELIN Energy XM2+ 185/65 R15 88H summer
29 Review