--- product_id: 502891465 title: "Klein Tools MM325 Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Tester, Tests Batteries, Current, Resistance, Diodes, and Continuity,Black" brand: "klein tools" price: "£90.00" currency: GBP in_stock: true reviews_count: 13 category: "Klein Tools" url: https://www.desertcart.co.uk/products/502891465-klein-tools-mm325-multimeter-digital-manual-ranging-600v-ac-dc store_origin: GB region: United Kingdom --- # 600V AC/DC voltage range Backlit LCD for low-light clarity Accurate battery testing under load Klein Tools MM325 Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Tester, Tests Batteries, Current, Resistance, Diodes, and Continuity,Black **Brand:** klein tools **Price:** £90.00 **Availability:** ✅ In Stock ## Summary > ⚡ Stay powered, stay precise — the ultimate tool for the savvy pro. ## Quick Answers - **What is this?** Klein Tools MM325 Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Tester, Tests Batteries, Current, Resistance, Diodes, and Continuity,Black by klein tools - **How much does it cost?** £90.00 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/502891465-klein-tools-mm325-multimeter-digital-manual-ranging-600v-ac-dc) ## 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 - • **Safety First:** Lead-Alert LEDs confirm proper test lead placement, minimizing errors and maximizing safety. - • **Powerful Precision:** Measures up to 600V AC/DC and 10A DC current for versatile electrical diagnostics. - • **Rugged Reliability:** Drop-tested to 6.6 feet and CAT III 600V rated for tough jobsite durability. - • **Battery Health Guru:** Tests 1.5V and 9V batteries under load, ensuring you never get caught powerless. - • **Hands-Free Convenience:** Built-in kickstand and optional magnetic hanger let you multitask with ease. ## Overview The Klein Tools MM325 is a robust digital manual-ranging multimeter designed for professionals and DIYers alike. It measures AC/DC voltage up to 600V, DC current up to 10A, and resistance up to 2MΩ, with additional tests for continuity, diodes, and batteries. Featuring a backlit LCD for clear readings in any lighting, lead-alert LEDs for safe and accurate testing, and a rugged build rated for 6.6-foot drops, this multimeter combines precision, safety, and durability. Its hands-free features like a kickstand and magnetic hanger make it indispensable for complex tasks, while included CAT III/CAT IV safety-capped leads ensure compliance with industry standards. ## Description Product Description Klein Tools MM325 Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Tester, Tests Batteries, Current, Resistance, Diodes, and Continuity,Black Safety Warning Do not use the meter during electrical storms or in wet weather, and do not use the meter or test leads if they appear to be damaged. Review: First class - Excellent meter, great price too! Review: For a few pounds more than a battery tester I have a reliable multimeter - I needed a good battery tester, having experienced that the usual cheap ones were not very reliable. I decided that I may as well invest in a multimeter that could test batteries. I'm very pleased with this - exceptional quality for the price (YouTube reviews attest to build quality) - and it will test 1.5V / 9V batteries 'under load' to give an accurate remaining voltage reading. You have to use the supplied leads to 'touch' the battery +/-contacts so perhaps not as convenient as many specific battery testers, but this multimeter does have a built-in stand which means you have both hands free. ## Features - VERSATILE FUNCTIONALITY: Measures AC/DC voltage up to 600V, 10A DC current, 2MΩ resistance; additional features include continuity, diode test and battery test - LEAD-ALERT PROTECTION: LEDs on the meter illuminate to indicate proper test lead placement, enhancing accuracy and safety during measurements - BACKLIT DISPLAY: LCD shows clear readings in low-light conditions for enhanced visibility - BATTERY TEST: Battery test mode can be used for checking if batteries are working - CONVENIENT FEATURES: Test lead holders on the back of the meter, kickstand and optional magnetic hanger (Cat. Nos. 69445 or 69417) for hands-free operation - DURABLE CONSTRUCTION: Built to withstand a 6.6-Foot (2 m) drop, for use in basic and controlled electromagnetic environments such as residential, business and light-industrial locations - COMPLETE PACKAGE: Includes test leads with CAT III/CAT IV safety caps, instructions, and 2 x AAA batteries ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B57L9FNL | | Best Sellers Rank | 114,614 in DIY & Tools ( See Top 100 in DIY & Tools ) 232 in Multi Testers | | Brand | KLEIN TOOLS | | Colour | Orange/ Black | | Compatible Devices | Electrical components and circuits | | Customer Reviews | 4.7 out of 5 stars 2,700 Reviews | | Global Trade Identification Number | 00092644693731 | | Included Components | Multimeter, Voltage Tester | | Item Dimensions | 23.7 x 12.9 x 9.7 centimetres | | Item Length | 6.41 Inches | | Item Type Name | Building Material | | Item Weight | 0.87 Pounds | | Item Width | 3.13 Inches | | Item dimensions L x W x H | 23.7 x 12.9 x 9.7 centimetres | | Item weight | 0.87 Pounds | | Manufacturer | Klein Tools | | Manufacturer Part Number | MM325 | | Maximum Operating Voltage | 600 Volts | | Measurement Type | Multimeter | | Minimum Operating Voltage | 9 Volts | | Model Number | MM325 | | Power Source | Battery Powered | | Power source | Battery Powered | | Specification Met | Cat Iii 600v Safety Rating | | Style | Protection,Safety | | Style Name | Protection,Safety | | UPC | 092644693731 | | Unit Count | 1.0 count | | Upper Temperature Rating | 60 Degrees Celsius | ## Product Details - **Brand:** KLEIN TOOLS - **Colour:** Orange/ Black - **Item weight:** 0.87 Pounds - **Power source:** Battery Powered - **Style:** Protection,Safety ## Images ![Klein Tools MM325 Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Tester, Tests Batteries, Current, Resistance, Diodes, and Continuity,Black - Image 1](https://m.media-amazon.com/images/I/51EPzXFvIAL.jpg) ![Klein Tools MM325 Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Tester, Tests Batteries, Current, Resistance, Diodes, and Continuity,Black - Image 2](https://m.media-amazon.com/images/I/61C767ri-YL.jpg) ![Klein Tools MM325 Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Tester, Tests Batteries, Current, Resistance, Diodes, and Continuity,Black - Image 3](https://m.media-amazon.com/images/I/61K7-fwWjqL.jpg) ![Klein Tools MM325 Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Tester, Tests Batteries, Current, Resistance, Diodes, and Continuity,Black - Image 4](https://m.media-amazon.com/images/I/61Cgh9FcqWL.jpg) ![Klein Tools MM325 Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Tester, Tests Batteries, Current, Resistance, Diodes, and Continuity,Black - Image 5](https://m.media-amazon.com/images/I/51-H06Q9aFL.jpg) ## Available Options This product comes in different **Pattern** options. ## Questions & Answers **Q: Does this have auto power off?** A: yes **Q: how long are the test leads?** A: The leads are 38 Inches long. **Q: Does it check Hz ?** A: The MM325 checks Frequency /Duty Cycle 1 Hz-50kHz **Q: whats the lowest voltage reading?** A: Lowest voltage ranges are 200mV DC and 200V AC. ## Customer Reviews ### ⭐⭐⭐⭐⭐ First class *by A***F on 26 December 2025* Excellent meter, great price too! ### ⭐⭐⭐⭐⭐ For a few pounds more than a battery tester I have a reliable multimeter *by D***. on 5 March 2025* I needed a good battery tester, having experienced that the usual cheap ones were not very reliable. I decided that I may as well invest in a multimeter that could test batteries. I'm very pleased with this - exceptional quality for the price (YouTube reviews attest to build quality) - and it will test 1.5V / 9V batteries 'under load' to give an accurate remaining voltage reading. You have to use the supplied leads to 'touch' the battery +/-contacts so perhaps not as convenient as many specific battery testers, but this multimeter does have a built-in stand which means you have both hands free. ### ⭐⭐⭐⭐⭐ good price *by A***R on 23 February 2026* works as it should hopefully will last ## Frequently Bought Together - Klein Tools MM325 Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Tester, Tests Batteries, Current, Resistance, Diodes, and Continuity - Hard Multimeter Case for Klein MM325/MM420/MM400/MM300/Fluke 117/Fluke 115, Portable Bag for ET140/80023P(Case Only) - Proster 4mm Banana Plug to Alligator Clip - 15A 1000V Pure Copper Flexible Electrical Test Cable One Meter for Multimeter Electrical Clamp Meter Testing --- ## 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.co.uk/products/502891465-klein-tools-mm325-multimeter-digital-manual-ranging-600v-ac-dc](https://www.desertcart.co.uk/products/502891465-klein-tools-mm325-multimeter-digital-manual-ranging-600v-ac-dc) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-14*