--- product_id: 127765877 title: "ET45 Digital AC/DC Voltage Tester, 12-240V AC, 32-330V DC, LED Illumination, DC Polarity, Auto Off, CATIII 350V-Class 2-Double Insulation, IP44 Dust & Water Resistant, No Batteries Needed" brand: "klein tools" price: "HK$181" currency: HKD in_stock: true reviews_count: 13 category: "Klein Tools" url: https://www.desertcart.hk/products/127765877-et45-digital-ac-dc-voltage-tester-12-240v-ac-32 store_origin: HK region: Hong Kong --- # 12-240V AC & 32-330V DC range Bright LED voltage indication CATIII 350V safety & IP44 protection ET45 Digital AC/DC Voltage Tester, 12-240V AC, 32-330V DC, LED Illumination, DC Polarity, Auto Off, CATIII 350V-Class 2-Double Insulation, IP44 Dust & Water Resistant, No Batteries Needed **Brand:** klein tools **Price:** HK$181 **Availability:** ✅ In Stock ## Summary > ⚡ Test Smarter, Not Harder — The Voltage Tester That Keeps Up With You ## Quick Answers - **What is this?** ET45 Digital AC/DC Voltage Tester, 12-240V AC, 32-330V DC, LED Illumination, DC Polarity, Auto Off, CATIII 350V-Class 2-Double Insulation, IP44 Dust & Water Resistant, No Batteries Needed by klein tools - **How much does it cost?** HK$181 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/127765877-et45-digital-ac-dc-voltage-tester-12-240v-ac-32) ## 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 - • **Trusted Legacy:** Crafted by Klein Tools, a 160+ year family-owned brand synonymous with professional-grade reliability. - • **Built for the Jobsite:** Rugged IP44 dust & water resistance plus 3m drop protection for ultimate durability. - • **Power Without Batteries:** Voltage-powered design means zero downtime—always ready when you are. - • **Smart Storage & Testing:** Integrated test lead holders perfectly sized for tamper-resistant outlets—no more lost probes. - • **Precision Voltage Detection:** Clear LED illumination instantly identifies AC/DC voltage levels for foolproof testing. ## Overview The Klein Tools ET45 Digital Voltage Tester offers comprehensive AC/DC voltage testing from 12-240V AC and 32-330V DC with bright LED indicators for clear readings. Its battery-free operation ensures uninterrupted use, while rugged IP44 dust and water resistance plus CATIII 350V safety rating deliver professional-grade durability and protection. Designed with built-in test lead holders and tamper-resistant outlet compatibility, this compact, pocket-friendly tester is the go-to tool for electricians and DIY pros who demand accuracy and reliability on every job. ## 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. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857. Review: A nice alternative to multimeter - Sometimes you don't want to bring out the multimeter just to test the voltage. This is a good alternative. Review: Quick Check Tool - Great tool for checking voltage. Bought it for the toolbox in the bed of my pickup. I didn't buy a full blown multimetrer because they need batteries. It'll sit in the tool box for many months till I need it and the batteries would be dead or leaking with my luck. I use it to check voltage in the field or when I'm not home in my workshop. Probes are the right length, caps come off if you need more length to check a tamper resistant outlet. Basically foolproof. Lights up with the correct voltage on a scale. Be sure to test on a known live outlet before each use. ## Features - EXTENSIVE VOLTAGE TESTING: Test AC voltages from 24V to 240V and DC voltages from 32V to 330V across four levels, providing comprehensive electrical testing capabilities - CLEAR VOLTAGE INDICATION: Bright LEDs illuminate, providing clear indication of voltage type and level, ensuring accurate measurements every time - BUILT-IN TEST LEAD HOLDERS: Conveniently built-in test lead holders on the back of the meter spaced for testing tamper-resistant US-style outlets and easy storage - BATTERY-FREE OPERATION: Powered directly by the applied voltage, eliminating the need for batteries and ensuring continuous testing without interruption - ENHANCED DURABILITY: IP44 ingress protection and 9.8-Foot (3m) drop protection to meet jobsite demands - HIGH SAFETY STANDARDS: Safety Rating of CATIII 350V, Class 2, Double insulation ensures optimal protection and compliance with safety regulations - VERSATILE APPLICATION: Suitable for a wide range of electrical testing scenarios, this tester provides accurate results and peace of mind during electrical inspections and troubleshooting ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07NZS6DGS | | Best Sellers Rank | #33,930 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #39 in Voltage Testers | | Brand | KLEIN TOOLS | | Brand Name | KLEIN TOOLS | | Color | Orange | | Customer Reviews | 4.5 out of 5 stars 946 Reviews | | Global Trade Identification Number | 00092644691843 | | Included Components | Tester | | Item Dimensions | 4.45 x 1.19 x 1.05 inches | | Item Type Name | Klein Tools ET45 Voltage Tester, AC Voltage and DC Voltage Tester, Low Voltage Tester Does Not Need Batteries | | Item Weight | 1.8 ounces | | Item dimensions L x W x H | 4.45 x 1.19 x 1.05 inches | | Manufacturer | Klein Tools | | Measurement Type | Voltmeter | | Minimum Operating Voltage | 24 volts_of_alternating_current | | Model | ET40 | | Number of Items | 1 | | Part Number | ET45 | | Power Source | Voltage-powered | | Specification Met | CE | | Style | 24/240 V | | Style Name | 24/240 V | | UPC | 092644691843 | | Warranty Description | See Manufacturer Website | ## Product Details - **Brand:** KLEIN TOOLS - **Color:** Orange - **Item Weight:** 1.8 Ounces - **Power Source:** Voltage-powered - **Style:** 24/240 V ## Images ![ET45 Digital AC/DC Voltage Tester, 12-240V AC, 32-330V DC, LED Illumination, DC Polarity, Auto Off, CATIII 350V-Class 2-Double Insulation, IP44 Dust & Water Resistant, No Batteries Needed - Image 1](https://m.media-amazon.com/images/I/41m2zDMldtL.jpg) ![ET45 Digital AC/DC Voltage Tester, 12-240V AC, 32-330V DC, LED Illumination, DC Polarity, Auto Off, CATIII 350V-Class 2-Double Insulation, IP44 Dust & Water Resistant, No Batteries Needed - Image 2](https://m.media-amazon.com/images/I/510MLUBxbyL.jpg) ![ET45 Digital AC/DC Voltage Tester, 12-240V AC, 32-330V DC, LED Illumination, DC Polarity, Auto Off, CATIII 350V-Class 2-Double Insulation, IP44 Dust & Water Resistant, No Batteries Needed - Image 3](https://m.media-amazon.com/images/I/61qF6YUgi5L.jpg) ![ET45 Digital AC/DC Voltage Tester, 12-240V AC, 32-330V DC, LED Illumination, DC Polarity, Auto Off, CATIII 350V-Class 2-Double Insulation, IP44 Dust & Water Resistant, No Batteries Needed - Image 4](https://m.media-amazon.com/images/I/61D4MWaazYL.jpg) ![ET45 Digital AC/DC Voltage Tester, 12-240V AC, 32-330V DC, LED Illumination, DC Polarity, Auto Off, CATIII 350V-Class 2-Double Insulation, IP44 Dust & Water Resistant, No Batteries Needed - Image 5](https://m.media-amazon.com/images/I/51fgMrbWbdL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A nice alternative to multimeter *by L***G on February 24, 2026* Sometimes you don't want to bring out the multimeter just to test the voltage. This is a good alternative. ### ⭐⭐⭐⭐⭐ Quick Check Tool *by A***. on August 4, 2026* Great tool for checking voltage. Bought it for the toolbox in the bed of my pickup. I didn't buy a full blown multimetrer because they need batteries. It'll sit in the tool box for many months till I need it and the batteries would be dead or leaking with my luck. I use it to check voltage in the field or when I'm not home in my workshop. Probes are the right length, caps come off if you need more length to check a tamper resistant outlet. Basically foolproof. Lights up with the correct voltage on a scale. Be sure to test on a known live outlet before each use. ### ⭐⭐⭐⭐⭐ . *by C***H on March 10, 2026* Nice item. Thank you. ## 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.hk/products/127765877-et45-digital-ac-dc-voltage-tester-12-240v-ac-32](https://www.desertcart.hk/products/127765877-et45-digital-ac-dc-voltage-tester-12-240v-ac-32) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-08-23*