42.99 85.99
Relay: Quickly test 4 and 5 pin relays to identify faulty electrical components without guesswork. USA patented.
Battery: Connect directly to your vehicle battery to verify charging status and alternator performance accurately.
Durable: Lightweight, compact, and built for garages, workshops, roadside emergencies, and long-term daily use.
Operation: Simply plug in the relay, press the TEST button, and instantly read the diagnostic results.
Alternator: Heavy-duty battery clamps help confirm whether your alternator is delivering proper electrical output.
1* Saker® Automotive Relay Tester