--- product_id: 281802034 title: "Klein Tools Voltage Tester, AC Voltage and DC Voltage Tester, No Batteries Needed ET45" brand: "klein tools" price: "€ 40.74" currency: EUR in_stock: true reviews_count: 5 category: "Klein Tools" url: https://www.desertcart.be/products/281802034-klein-tools-voltage-tester-ac-voltage-and-dc-voltage-tester store_origin: BE region: Belgium --- # 24V-240V AC range No batteries needed Built-in lead holder Klein Tools Voltage Tester, AC Voltage and DC Voltage Tester, No Batteries Needed ET45 **Brand:** klein tools **Price:** € 40.74 **Availability:** ✅ In Stock ## Summary > ⚡ Test Smarter, Not Harder — Power Up Your Electrical Game! ## Quick Answers - **What is this?** Klein Tools Voltage Tester, AC Voltage and DC Voltage Tester, No Batteries Needed ET45 by klein tools - **How much does it cost?** € 40.74 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/281802034-klein-tools-voltage-tester-ac-voltage-and-dc-voltage-tester) ## Best For - klein tools enthusiasts ## Why This Product - Trusted klein tools brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rugged & Ready:** Withstands drops up to 9.9 feet and features IP44 dust and water resistance for tough jobsite durability. - • **Smart Lead Storage:** Innovative built-in test lead holder ensures perfect spacing for tamper-resistant outlets and hassle-free storage. - • **Dual Voltage Mastery:** Accurately tests AC voltages from 24V to 240V and DC voltages from 32V to 330V across four precise levels. - • **Pocket-Sized Convenience:** Compact design with a secure pocket clip keeps your tester within reach for every electrical check. - • **Power Up Without Batteries:** Operates solely on applied voltage—never worry about dead batteries again. ## Overview 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, rugged drop resistance, and IP44 dust/water protection, it’s engineered for reliable, everyday use on residential and commercial electrical systems. ## Description Klein Tools ET45 is an Electronic Voltage Tester. Designed as a simple, easy to use tester to check, verify or troubleshoot common residential electrical wiring in electrical outlets, light fixtures, doorbells and more. This tester does not require batteries, and features a pocket clip for convenient carrying. Tests AC voltages from 24V to 240V AC at four useful levels. Tests DC voltages from 32V to 330V at four levels. Built-in test lead holder on back of tester holds the leads in one of two positions: one so that they are spaced correctly to test tamper-resistant US-style outlets and the other for convenient storage of the test leads. Test leads can be docked in the holder for convenient storage. Batteries not required; tester is powered by the applied voltage. Built to withstand a 9. 9-Foot (3 m) drop. Safety Rating: CATIII 350V, Class 2, Double insulation. Ingress protection IP44 dust and water resistant. Pocket clip secures tester to pocket for reliable everyday carrying. For more than 160 years Review: It is absolutely necessary and perfect. - This voltage tester was a must have for me. I feel more at ease putting my trust in this product than I do a voltage pen, therefore since I lost my previous tester I purchased this affordable one. Absolutely perfect for checking safe isolation and betteries. Very please with this handy pocket tester. Review: works great - exactly what i need , fast easy and no batteries needed so i can leave it in the car in the winter ## Features - Tests AC voltages from 24V to 240V AC at four useful levels - Tests DC Voltages from 32V to 330V At four levels - Built-in test lead holder on back of tester holds the leads in one of two positions: one so that they are spaced correctly to test tamper-resistant use-style outlets and the other for convenient storage of the test leads ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07NZS6DGS | | Best Sellers Rank | #84,280 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #194 in Voltage Testers | | Brand | KLEIN TOOLS | | Brand Name | KLEIN TOOLS | | Color | Multi | | Colour | Multi | | Compatible Devices | Electrical circuits within the voltage range of 24V to 330V | | Country Of Origin | China | | Customer Reviews | 4.5 out of 5 stars 1,609 Reviews | | Global Trade Identification Number | 00092644691843 | | Included Components | AC/DC Voltage Tester: Tester | | Item Dimensions | 11.3 x 3 x 2.7 centimeters | | 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 | | Item dimensions L x W x H | 11.3 x 3 x 2.7 centimeters | | Item weight | 1.8 Ounces | | Manufacturer | KLEIN TOOLS | | Maximum Operating Voltage | 330 Volts | | Measurement Type | Voltmeter | | Minimum Operating Voltage | 24 Volts (AC) | | Model | ET40 | | Part Number | ET45 | | Power Source | Applied Voltage | | Power source | Applied Voltage | | Specification Met | CE | | Style | 24/240 V | | Style Name | 24/240 V | | UPC | 092644691843 | | Unit Count | 1 Count | ## Product Details - **Brand:** KLEIN TOOLS - **Colour:** Multi - **Item weight:** 1.8 Ounces - **Power source:** Applied Voltage - **Style:** 24/240 V ## Images ![Klein Tools Voltage Tester, AC Voltage and DC Voltage Tester, No Batteries Needed ET45 - Image 1](https://m.media-amazon.com/images/I/41m2zDMldtL.jpg) ![Klein Tools Voltage Tester, AC Voltage and DC Voltage Tester, No Batteries Needed ET45 - Image 2](https://m.media-amazon.com/images/I/510MLUBxbyL.jpg) ![Klein Tools Voltage Tester, AC Voltage and DC Voltage Tester, No Batteries Needed ET45 - Image 3](https://m.media-amazon.com/images/I/61qF6YUgi5L.jpg) ![Klein Tools Voltage Tester, AC Voltage and DC Voltage Tester, No Batteries Needed ET45 - Image 4](https://m.media-amazon.com/images/I/61D4MWaazYL.jpg) ![Klein Tools Voltage Tester, AC Voltage and DC Voltage Tester, No Batteries Needed ET45 - Image 5](https://m.media-amazon.com/images/I/51fgMrbWbdL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ It is absolutely necessary and perfect. *by J***S on 7 July 2023* This voltage tester was a must have for me. I feel more at ease putting my trust in this product than I do a voltage pen, therefore since I lost my previous tester I purchased this affordable one. Absolutely perfect for checking safe isolation and betteries. Very please with this handy pocket tester. ### ⭐⭐⭐⭐⭐ works great *by S***D on 6 November 2025* exactly what i need , fast easy and no batteries needed so i can leave it in the car in the winter ### ⭐⭐⭐⭐⭐ Buenísimo. *by J***Z on 6 February 2023* ¿Quieres saber si hay voltaje el tu circuito? Este es el probador indicado. Tienes las tres "B", bueno, bonito y barato. ## Frequently Bought Together - Klein Tools ET45 Voltage Tester, AC / DC, and Low Voltage Electric Tester, No Batteries Needed - NSi Industries TES-2 Voltage Tester, 120 or 240 VAC, Neon - WGGE WG-015 Professional 8-inch Wire Stripper/wire crimping tool, Wire Cutter, Wire Crimper, Cable Stripper, Wiring Tools and Multi-Function Hand Tool. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/281802034-klein-tools-voltage-tester-ac-voltage-and-dc-voltage-tester](https://www.desertcart.be/products/281802034-klein-tools-voltage-tester-ac-voltage-and-dc-voltage-tester) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-06-20*