How is using this tester preferable to hooking up your multimeter in series with alligator clips and a blade fuse soldered inline with your leads?

It helps because it has inline fuses which will protect your voltage meter. When using your meter directly you risk damaging your meter.

what gauge are the cables that connect to the battery and terminal. Can I start and run the vehicle with the tester connected?

No, they are a light gauge wire. Too light of wire to handle load of starter.

Does it come with instructions?

not really, you have to look at a video from mac or matco which has same tool just their name. its hard the first time ,but you can figure it out after you start to use it.

This seems useless. Why not use a clamp on dc meter?

I liked it because it has a fuseable link on both leads and you can connect your probe to it. I blew a couple fuses while trying to track down a short and it prevented an damage to my rather inexpensive multimeter. It's designed so that clamp it to the battery directly. If you already have leads with clamps then yes this would probably not be helpful to you. It worked great for me fixing a slow drain on our Jeep. I mostly found it helpful while pulling fuses until I found the circuit that was causing the trouble. I could have spent a fortune having it in the shop so I figured spending a couple bucks on this was a much better option.

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🔧 Diagnose hidden drains like a pro—never let your battery betray you again!

VERSATILE VOLTAGE ACCESS - Stacking banana connectors enable multi-point voltage measurements across your vehicle with standard test leads.
LIGHTWEIGHT COMPACT DESIGN - At just 86g and slim dimensions, this tester fits perfectly in any professional toolkit for on-the-go diagnostics.
ULTIMATE BATTERY DRAIN DEFENSE - Replaceable in-line fuses safeguard your meter and tester from unexpected high current surges.
SEAMLESS POWER SURGE PROTECTION - Bypass your multimeter effortlessly during connection to prevent damage from sudden power spikes.
CONTINUOUS MONITORING CONFIDENCE - Keep tester and meter connected until all vehicle computer systems shut down, isolating parasitic drains precisely.

The Lisle 64970 Parasitic Drain Tester offers a professional-grade solution to identify hidden battery drains in vehicles. Featuring replaceable in-line fuses for protection, a power surge bypass switch, and stacking banana connectors for versatile voltage measurement, it ensures safe, continuous, and precise diagnostics. Compact and lightweight, it’s engineered for efficient vehicle electrical system troubleshooting.

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Manufacturer	Lisle
Brand	Lisle
Model	64970
Product Dimensions	16.51 x 26.67 x 2.54 cm; 86.18 g
Item model number	64970
Manufacturer Part Number	64970
Item Weight	86.2 g

Lisle 64970 Parasitic Drain Tester, One Size, Factory

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