With a schotko adapter would this work to test the ground overseas at 220v?

With and adapter maybe not sure I’m not an electrician

If I use this how do I tell if the outlet has no ground? Theres no indicator on the device its self that says no ground.

Because the ground light on this device will not be lit up. The ground light will only light up on this device if the outlet is properly grounded.

Will this show a short in the wiring?

a short? No this is a device to show if you have a duplex receptacle wired correctly.

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クラインツールrt210コンセントGFCIテスター

Product ID: 762024375

Details

Brand
KLEIN TOOLS
Power Source
AC
Style
Standard
Color
Black
Item Weight
1.9 Ounces

⚡Detects wiring faults instantly

📏Drop-tested to 2m durability

🛡️UL & CSA certified safety

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€ 31.47

Duties & taxes included

In stock

Sold byAmazon IrelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Wire it right, every time — don’t get left in the dark!

WIDE OPERATING RANGE - Reliable performance from 32°F to 104°F (0°C to 40°C) ensures accuracy in diverse climates.
COMPACT LIGHTWEIGHT - At just 53.8g and pocket-sized, it’s the perfect tool to carry for every electrical inspection.
RUGGED DROP RESISTANCE - Engineered to survive 6.6 ft (2m) drops, built tough for demanding jobsite environments.
INSTANT WIRING DIAGNOSTICS - Light sequence reveals correct or faulty wiring in seconds, eliminating guesswork on the job.
CERTIFIED PROFESSIONAL GRADE - Meets UL Std 1436 and CSA Std C22.2 #160 for trusted, industry-standard safety compliance.

The Klein Tools RT210 Outlet GFCI Tester is a compact, professional-grade device designed to quickly identify common wiring issues in standard 110/125V outlets. Certified to UL and CSA safety standards, it features a clear light sequence for instant diagnostics, operates reliably across a broad temperature range, and withstands drops up to 2 meters, making it an essential, durable tool for electricians and serious DIYers alike.

Specifications

Brand	KLEIN TOOLS
Model Number	RT110
Product Dimensions	13.97 x 8.89 x 4.57 cm; 53.86 g
Color	Black
Name List for Name Plates	Standard
Material	plastic
Wallpaper Pattern	tester
Power Source	AC
Included Components	RT110
Are Batteries Included	No
Item Weight	53.8 g

Reviews

W**R

Does what it says. Simple, efficient

20.09.2025

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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