Can I use this with a proving unit?

ET45 had a CATIII 350V rating so if your planning on using a 600V proving unit probably not. Try a known 230V power source.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Voltage Tester, AC Voltage and DC Voltage Tester, No Batteries Needed Klein Tools ET45

Voltage Tester, AC Voltage and DC Voltage Tester, No Batteries Needed Klein Tools ET45

Product ID: 145721931

Details

Brand
KLEIN TOOLS
Colour
Orange
Item weight
1.8 Ounces
Power source
Not Battery
Style
24/240 V

⚡24-240V AC range

🔋No batteries needed

🧰Built-in lead holder

€ 40.52

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Description

⚡ Stay powered, stay precise — the tester that’s always ready when you are.

RUGGED RELIABILITY - Drop-tested to 9.9 feet with IP44 dust and water resistance—built to survive your busiest workdays.
SMART LEAD STORAGE - Innovative built-in test lead holder docks leads for tamper-resistant outlet testing or neat storage.
COMPACT CLIP READY - Pocket-sized with a secure clip for effortless carry and instant access on the go.
DUAL VOLTAGE MASTERY - Accurately tests AC voltages from 24V to 240V and DC voltages from 32V to 330V across four precision levels.
POWER UP WITHOUT BATTERIES - Operates solely on applied voltage—never worry about dead batteries again.

The Klein Tools ET45 Voltage Tester is a compact, battery-free device designed for professional-grade AC/DC voltage testing from 24V to 330V. Featuring a built-in lead holder for tamper-resistant outlet testing and convenient storage, it combines rugged durability with pocket-ready portability. Trusted for quick, reliable diagnostics without the hassle of battery maintenance, it’s a must-have for electricians and DIY pros aiming to stay efficient and safe.

Specifications

ASIN	B07NZS6DGS
Best Sellers Rank	141,502 in DIY & Tools ( See Top 100 in DIY & Tools ) 189 in Voltage Testers
Brand	KLEIN TOOLS
Colour	Orange
Compatible Devices	Electrical circuits (24V to 330V)
Country Of Origin	China
Customer Reviews	4.5 4.5 out of 5 stars (911)
Global Trade Identification Number	00092644691843
Included Components	AC/DC Voltage Tester: Tester
Item Dimensions	11.3 x 3 x 2.7 centimetres
Item Length	4.45 Inches
Item Type Name	Voltage Tester, AC Voltage and DC Voltage Tester, No Batteries Needed
Item Weight	1.8 Ounces
Item Width	1.19 Inches
Manufacturer	Klein Tools
Manufacturer Part Number	ET45
Maximum Operating Voltage	330 Volts
Measurement Type	Voltmeter
Minimum Operating Voltage	24 Volts (AC)
Model Number	ET40
Number of Items	1
Number of Packs	1
Power Source	Not Battery Powered
Specification Met	CE
Style Name	24/240 V
UPC	092644691843
Unit Count	1.0 count

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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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€ 40.52

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered 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 Cyprus.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

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Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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