Is there any advantage to this tool over just swapping in a known good relay? I'm not seeing the value here.

There are plenty of advantages to this if you know how to use it. Swapping with a known good relay will only tell you if the issue is the relay or not. This will allow you to check the power and ground to the relay while leaving it plugged in, this way you can check the voltage in a completed circuit. Example would be power wires with relay unplugged will show 12v, same wire with the relay plugged in could be 5v because of resistance on the wire, or ground wire can read 0ohms like there is nothing wrong but if you plug the relay back in there could be voltage on it indicating a bad ground. Resistance checks are not a good test for wires because resistance changes with heat, and once the circuit is under load the wires can heat up causing the circuit to fail.

what is the jaw opening at the tip? will it grab small fuses?

Not for fuses but works well on any relays.

Does this work with mitsubishi lancer evo's relays? like the panasonic 8627a030

holy lancer most relays are universal theres a good chance it will fit I would look at a info source ie Mitchell alldata motologic and look at the relay box top view and look at the pin designation best of luck to you

Can you pull the relay out stick these in the slots and find out if you have 12 volt at the relay Source when you turn the key on with the tester like

Yes, that is the purpose of this test kit. If you are unfamiliar with testing relays, then search for videos that use this test kit on relays. It's pretty straight forward.

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Lisle 69300 Master Relay and Fused Circuit Test Kit

Product ID: 2403911

Details

Brand
Lisle
Color
Factory
Item Weight
2.1 pounds
Power Source
Hand Powered
Style
Master Relay

⚡8 relay test jumpers

🔌Multimeter-ready connections

🛠️Relay puller pliers included

R8328

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Master your automotive diagnostics—test smarter, not harder!

EFFORTLESS RELAY REMOVAL - Specialized relay puller pliers make accessing and removing relays easy—no wire damage, no hassle.
FAST WIRE SAFE TESTING - Diagnose relays and live circuits without piercing wires for quick, damage-free troubleshooting.
VERSATILE CIRCUIT ACCESS - Terminal leads with switch, fuse, and power options let you test a wide range of vehicle fuses and relays.
UNIVERSAL RELAY COMPATIBILITY - Includes 8 jumpers fitting most automotive relays, plus support for VW, BMW & European models.
SEAMLESS MULTIMETER INTEGRATION - Secure test lead kit connects jumpers to your multimeter for precise current and voltage readings.

The Lisle 69300 Master Relay and Fused Circuit Test Kit is a professional-grade toolset designed for fast, non-invasive testing of automotive relays and live circuits. Featuring eight relay test jumpers compatible with most vehicles—including European makes—plus a secure multimeter connection kit and relay puller pliers, it streamlines electrical diagnostics without damaging wires. Compact and versatile, it’s the go-to kit for efficient, reliable vehicle electrical troubleshooting.

Specifications

ASIN	B00CRQSYY4
Best Sellers Rank	#19,986 in Automotive ( See Top 100 in Automotive ) #63 in Automotive Replacement Accessory Power Relays
Brand Name	Lisle
Color	Factory
Customer Reviews	4.8 4.8 out of 5 stars (668)
Global Trade Identification Number	00083045693000
Included Components	Manufactuered Brand Product
Item Dimensions	4 x 2.3 x 1.5 inches
Item Highlight	Makes testing relays or live circuits quick and easy, Includes carrying case
Item Type Name	Tools
Item Weight	2.1 pounds
Manufacturer	LISLE
Measurement Type	Multimeter
Model	69300
Number of Items	1
Number of Packs	1
Part Number	69300
Power Source	Hand Powered
Style Name	Master Relay Test Jump Set
UPC	083045693000
Unit Count	1 Count
Warranty Description	30 Days

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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R8328

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

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3 days ago

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