--- product_id: 235279801 title: "AstroAI TRMS 4000 Counts Digital Multimeter, Auto-Ranging with NCV, Backlit | Volt Meter Tests 1.5V/9V/12V Batteries, Voltage Tester Measures Voltage, Current, Capacitance, Resistance, Continuity" brand: "astroai" price: "€ 46.45" currency: EUR in_stock: true reviews_count: 13 category: "Astro Ai" url: https://www.desertcart.de/products/235279801-astroai-trms-4000-counts-digital-multimeter-auto-ranging-with-ncv store_origin: DE region: Germany --- # 600V max voltage Backlit LCD + flashlight 3 battery voltage modes AstroAI TRMS 4000 Counts Digital Multimeter, Auto-Ranging with NCV, Backlit | Volt Meter Tests 1.5V/9V/12V Batteries, Voltage Tester Measures Voltage, Current, Capacitance, Resistance, Continuity **Brand:** astroai **Price:** € 46.45 **Availability:** ✅ In Stock ## Summary > 🔧 Power up your toolkit with precision and safety—don’t get left in the dark! ## Quick Answers - **What is this?** AstroAI TRMS 4000 Counts Digital Multimeter, Auto-Ranging with NCV, Backlit | Volt Meter Tests 1.5V/9V/12V Batteries, Voltage Tester Measures Voltage, Current, Capacitance, Resistance, Continuity by astroai - **How much does it cost?** € 46.45 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/235279801-astroai-trms-4000-counts-digital-multimeter-auto-ranging-with-ncv) ## Best For - astroai enthusiasts ## Why This Product - Trusted astroai brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Battery Tester:** Instantly checks 1.5V, 9V, and 12V batteries with intuitive red/green LED indicators to save you money and time. - • **Precision Auto-Ranging:** Effortlessly measures AC/DC voltage up to 600V, current to 10A, and resistance to 40MΩ with pinpoint accuracy. - • **Durable & Reliable Design:** Protected by a silicon case and double ceramic fuse for anti-burn safety, backed by a 3-year warranty. - • **User-Friendly Backlit Display:** Bright LCD and built-in flashlight ensure clear readings even in dim or cluttered workspaces. - • **Safe Non-Contact Voltage Detection:** Detects live wires with audible and visual alarms—no direct contact needed for ultimate peace of mind. ## Overview The AstroAI TRMS 4000 Counts Digital Multimeter is a versatile, auto-ranging tool designed for professionals and DIYers alike. It measures voltage up to 600V, current up to 10A, and resistance up to 40MΩ, with added features like non-contact voltage detection, battery testing for common voltages, and a backlit LCD with flashlight. Built for safety and durability, it includes a silicon protective case and double ceramic fuse, making it a reliable companion for electrical troubleshooting and maintenance tasks. ## Description Shop AstroAI TRMS 4000 Counts Digital Multimeter, Auto-Ranging with NCV, Backlit | Volt Meter Tests 1.5V/9V/12V Batteries, Voltage Tester Measures Voltage, Current, Capacitance, Resistance, Continuity. Free delivery on eligible orders of £20 or more. Review: Paid for itself on saved batteries - This is great for home use if you use a lot of batteries. I bought it primarily for the battery testing facilities as we were having problems with some items [grandkids toys and other "smart home" items. We were changing battery sets frequently so thought I'd get a meter to check the status of each individual battery rather than block change them out. I chose this model from the reviews, the price, and the simple switch for choosing the test function needed. I have only used it for resistance and battery checking to date but it paid for itself within a short time as a relation has a holiday let and routinely has to check batteries for the fire regs. Using the meter allowed faulty cells to be replaced individually, saving money each time. I bought a second one as a gift and left it at the holiday let. Very simple to use and a nice clear display. The associated user manual is small but pretty comprehensive with some real life usage examples. My grandson likes to help with the testing [a clear red or green light depending on the voltage of the battery being tested]. One word of caution - the test leads have a very sharp prong at the end so be careful. Review: Recommended👍 - This is just amazingly good 😊 It's easy to use, measuring well and the functions are excellent plus the display light and additional torch feature is superb, as is the mains voltage detection that's so useful finding hidden cables in walls and tracing live circuits. desertcart is great because one can search for something from actual product reviews. I needed a new meter after my old one broke, and was thinking about buying an expensive type as surely a 'cheap' meter would be a waste of money!?? Reading the reviews of people who had bought the expensive ones though and been very disappointed, I decided to go low and check the reviews on the cheaper types which included this. Having read other opinions I decided to buy this one and am so pleased that I did. I'm about to order another one for help in my work fixing vintage gaming and arcade equipment, but just wanted to add to this review, praise for the meter and suggest also if you have any requirements for a meter, then buy and try this! I can certainly thoroughly recommend it 👍 It may be a cheap meter but works incredibly well and didn't cost a fortune. A++++ to the manufacturer! A worthy addition to anyone's toolkit ✔️ ## Features - APPLICATIONS: Auto Ranging for accurate measurement of AC/DC voltage to 600V, Current to 10A, Resistance to 40MΩ. Tests Continuity, Capacitance and Diodes. - BATTERY VOLTAGE TESTER: 3 Voltage modes, Designed to test 1.5V, 9V, 12V Batteries. Multimeter light turns red for low voltage and green for enough voltage. - NON-CONTACT: Fully safe non-contact voltage testing with sound and light alarms. Uses NVC function to detect high voltage with red alarm light. - EASILY OPERATED: Backlight and flashlight functions allow it to be easily plugged in. LCD display comes on. - SAFETY: Double ceramic fuse which is anti-burn and protects from overloading. The silicon protection case protects it from damage. 3 Years provided by AstroAI. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08DHHJPS1 | | Best Sellers Rank | 22,958 in DIY & Tools ( See Top 100 in DIY & Tools ) 30 in Multi Testers | | Brand | AstroAI | | Colour | Green,Red | | Country Of Origin | China | | Customer Reviews | 4.7 out of 5 stars 6,390 Reviews | | Item Dimensions | 14.9 x 7.1 x 3.5 centimetres | | Item Weight | 219 Grams | | Item dimensions L x W x H | 14.9 x 7.1 x 3.5 centimetres | | Item weight | 219 Grams | | Manufacturer | AstroAI | | Manufacturer Part Number | M4K0R | | Maximum Operating Voltage | 600 Volts | | Measurement Type | Multimeter | | Model Number | ASIM4K0R | | Number of Items | 1 | | Power Source | Battery Powered | | Power source | Battery Powered | | Style | Safety | | Style Name | Safety | | UPC | 810074980166 | | Upper Temperature Rating | 40 Degrees Celsius | ## Product Details - **Brand:** AstroAI - **Colour:** Green,Red - **Item weight:** 219 Grams - **Power source:** Battery Powered - **Style:** Safety ## Images ![AstroAI TRMS 4000 Counts Digital Multimeter, Auto-Ranging with NCV, Backlit | Volt Meter Tests 1.5V/9V/12V Batteries, Voltage Tester Measures Voltage, Current, Capacitance, Resistance, Continuity - Image 1](https://m.media-amazon.com/images/I/71TQq1ZlPHL.jpg) ## Questions & Answers **Q: How sensitive is the NCV feature?** A: I called it a name and it still works. It detects LED voltage on Christmas tree lights from about 5 inches away... you may find your meter has feelings, but mine seems to not care about sensitivity.. it just indicates voltage is present. **Q: Do the Battery Test selections test under load?** A: The M4KOR model does the 1.5v - 9v - 12v battery tests each is under a small load, and does test the battery voltage as part of the DC volts ranges. The M6KOR model does NOT perform battery tests under load, but does test the battery voltage as part of the DC volts ranges. **Q: Would you choose this model or another for automotive diagnosing?** A: To answer your question I'm a master Automotive technician most of the people in the business use flukes but our use these ones because they are accurate and work just as good as the fluke when it comes to Automotive Diagnostics. There is nothing you can't do with this digital multimeter that you can do with a fluke **Q: I have been trying to measure the ac/dc amps with this but doesn't work. i wanted to know if i am missing something or its actually faulty?** A: Make sure you have the leads in the proper slots or ports for the amperage reading. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Paid for itself on saved batteries *by B***Y on 11 September 2025* This is great for home use if you use a lot of batteries. I bought it primarily for the battery testing facilities as we were having problems with some items [grandkids toys and other "smart home" items. We were changing battery sets frequently so thought I'd get a meter to check the status of each individual battery rather than block change them out. I chose this model from the reviews, the price, and the simple switch for choosing the test function needed. I have only used it for resistance and battery checking to date but it paid for itself within a short time as a relation has a holiday let and routinely has to check batteries for the fire regs. Using the meter allowed faulty cells to be replaced individually, saving money each time. I bought a second one as a gift and left it at the holiday let. Very simple to use and a nice clear display. The associated user manual is small but pretty comprehensive with some real life usage examples. My grandson likes to help with the testing [a clear red or green light depending on the voltage of the battery being tested]. One word of caution - the test leads have a very sharp prong at the end so be careful. ### ⭐⭐⭐⭐⭐ Recommended👍 *by D***C on 5 December 2022* This is just amazingly good 😊 It's easy to use, measuring well and the functions are excellent plus the display light and additional torch feature is superb, as is the mains voltage detection that's so useful finding hidden cables in walls and tracing live circuits. Amazon is great because one can search for something from actual product reviews. I needed a new meter after my old one broke, and was thinking about buying an expensive type as surely a 'cheap' meter would be a waste of money!?? Reading the reviews of people who had bought the expensive ones though and been very disappointed, I decided to go low and check the reviews on the cheaper types which included this. Having read other opinions I decided to buy this one and am so pleased that I did. I'm about to order another one for help in my work fixing vintage gaming and arcade equipment, but just wanted to add to this review, praise for the meter and suggest also if you have any requirements for a meter, then buy and try this! I can certainly thoroughly recommend it 👍 It may be a cheap meter but works incredibly well and didn't cost a fortune. A++++ to the manufacturer! A worthy addition to anyone's toolkit ✔️ ### ⭐⭐⭐⭐ Good value *by C***A on 8 October 2023* A very good multimeter for testing many of the everyday electrical systems and equipment in the home and car. It appears to be well made and on a few checks made on the test bench accurate. It’s easy to get to the batteries to replace them when required, but that doesn’t appear to be the case if one of the fuses get blown. In the instructions it tells you to remove the rubber casing to remove the screws and back, but try as hard as I could I couldn’t get the rubber casing off. I came to the conclusion that the only way I could remove the casing would probably destroy it so I gave up. I’ll just have to try and be ultra careful not to blow the fuses. Apart from that i believe this meter is good value for money. ## Frequently Bought Together - AstroAI Multimeter Tester, TRMS 4000 Counts Volt Meter Auto-Ranging Ohmmeter Digital 1.5v/9v/12v Battery Voltage Tester Measure Voltage Current Resistance Diodes Continuity Capacitance with NCV - AstroAI 8Pcs Multimeter Test Leads Set with Alligator Clips, Plunger Test Mini Hooks and Test Probes 1000V 10A CAT III & CAT IV 600V for Fluke, KAIWEETS, INNOVA Multimeter, Voltmeter, Clamp Meter - Hard Case Replacement for AstroAI Digital Multimeter Volt Meter by Aenllosi (for 6000 Counts) --- ## 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.de/products/235279801-astroai-trms-4000-counts-digital-multimeter-auto-ranging-with-ncv](https://www.desertcart.de/products/235279801-astroai-trms-4000-counts-digital-multimeter-auto-ranging-with-ncv) --- *Product available on Desertcart Germany* *Store origin: DE* *Last updated: 2026-09-06*