Lisle 24550 Computer Safe Circuit Tester, One Size, Factory

Q: Is this item good at finding shorts circuits ? Thank you

It is an excellent product to use on automotive to find continuity (i.e., there is a closed loop or not). Short circuit is when there is infinite current flowing through the component but zero voltage across. A multi-meter would do this job as well.

Q: My test light bus only showing negative reading only.

The clap needs to be on the neg.

Q: How is it different than a multi tester?

It only displays volts. So it’s a Voltmeter, and a test light.

Q: How would this do testing a motherboard out?

I guess u are asking about a possible circuit board, if theis is the question then I suggest u use a multimeter, for lower electrical needs , yes it says possible for testing out ecm, but I won't take that chance to costly. Now to test on the voltage range it says I would be likely to use it , now if your asking about your boat motor I would think for the voltage range that it's listed on the tester or what the seller recommends, I myself will not use this on a circuit board, if u want to risk it that's your $ , not mine

Product ID: 118662093

Secure Transaction

Details

Brand
Lisle
Power source
Battery
Style
Computer Safe
Colour
Green Red
Item weight
0.15 Pounds

⚡Draws <21mA at 12V

🔋Operates 3-28V DC range

🔴🟢Polarity indicated by red/green lights

Description

🔧 Test Smarter, Not Harder – Protect Your Ride with Precision!

LOW POWER DRAW - Consumes less than 21mA at 12 volts, preserving battery life during testing.
COMPACT LIGHTWEIGHT - Slim 6.86 x 2.03 x 14.99 cm design weighing just 68 grams for easy portability.
INSTANT POLARITY FEEDBACK - Red and green LED indicators provide clear, immediate polarity detection.
WIDE VOLTAGE COMPATIBILITY - Operates seamlessly across a broad 3-28 volts DC range for versatile use.
ULTRA SAFE FOR MODERN ELECTRONICS - Engineered to protect sensitive automotive computers from damage.

The Lisle 24550 Computer Safe Circuit Tester is a precision electric testing device designed specifically for automotive use. It safely tests circuits without risking damage to sensitive vehicle computers, operating efficiently within a 3-28 volt DC range while drawing minimal current. Featuring clear red and green LED polarity indicators, this compact and lightweight tool ensures accurate diagnostics and peace of mind for professional and DIY mechanics alike.

Specifications

Manufacturer	Lisle
Brand	Lisle
Product Dimensions	6.86 x 2.03 x 14.99 cm; 68.04 g
Item model number	24550
Manufacturer part number	24550
OEM Part Number	24550
Voltage	12 Volts
Item Weight	68 g

Have a Question? See What Others Asked

Is this item good at finding shorts circuits ? Thank you

My test light bus only showing negative reading only.

How is it different than a multi tester?

How would this do testing a motherboard out?

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products