---
product_id: 611054145
title: "DMT-99 Multimeter"
brand: "fnirsi"
price: "€ 83.44"
currency: EUR
in_stock: true
reviews_count: 13
category: "Fnirsi"
url: https://www.desertcart.es/products/611054145-dmt-99-multimeter
store_origin: ES
region: Spain
---

# Real-time waveform graphing 9999-count True RMS resolution 1500mAh rechargeable battery DMT-99 Multimeter

**Brand:** fnirsi
**Price:** € 83.44
**Availability:** ✅ In Stock

## Summary

> ⚡ Diagnose smarter, not harder — the FNIRSI DMT-99 is your ultimate tech sidekick!

## Quick Answers

- **What is this?** DMT-99 Multimeter by fnirsi
- **How much does it cost?** € 83.44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/611054145-dmt-99-multimeter)

## Best For

- fnirsi enthusiasts

## Why This Product

- Trusted fnirsi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety Meets Clarity:** 2.4" HD color screen with adjustable brightness plus anti-burn dual ceramic fuses for worry-free use.
- • **Power Through the Day:** Built-in 1500mAh rechargeable battery with fast Type-C charging means no more downtime hunting for replacements.
- • **Compact, Smart & Ready:** Auto-identification mode, ultra-fine leads, and integrated kickstand/storage slots make on-the-go troubleshooting effortless.
- • **Visualize the Invisible:** Graphic waveform display captures transient spikes and voltage ripples others miss—diagnose like a pro.
- • **Precision at Your Fingertips:** High-res 9999-count True RMS ensures ultra-accurate AC/DC readings for flawless diagnostics.

## Overview

The FNIRSI DMT-99 is a professional-grade digital multimeter featuring a high-resolution 9999-count True RMS display, a rechargeable 1500mAh battery with Type-C charging, and a unique graphic waveform mode for real-time voltage/current monitoring. Designed for automotive and electronics diagnostics, it offers smart auto-identification of measurement types, a vivid 2.4" HD color screen with adjustable brightness, and advanced safety features including dual ceramic fuses. Compact and user-friendly, it’s engineered for precision, durability, and extended field use.

## Description

FNIRSI DMT-99 Digital Multimeter 9999 Counts TRMS, Rechargeable Volt Meter | Auto-Ranging, Graph Recording, Anti-Burn Protection, NCV Voltage/Current/Resistance/Capacitance for Electronics, Auto Repair: desertcart.com: Tools & Home Improvement

Review: Graph mode allows for easy testing of automotive parasitic drain - This thing does everything that a multimeter should do. What sets the DMT-99 apart from other multimeters in its price range ($37 at the time of writing this review) is its digital display with the graph mode, which cycles after a little over 30 seconds, and makes it infinitely easier to diagnose those pesky intermittent parasitic drain that spikes for a second and then goes away for the next 2-3 minutes. Other multimeters in this price range lack this feature. I purchased this multimeter and combined it with a Lisle 64970 parasitic drain testing harness to test my vehicle for intermittent parasitic drain. The graph mode (shown as the "recording mode") made it a lot easier since I didn't have to keep my eyes glued to the display the entire time. It also has the ability to display minimum and maximum detected levels. The only downside is there isn't a way to scroll back to see older chart, but you can mark and save the displayed current/voltage. Fortunately, the level of parasitic drain I discovered is within the norm of a modern vehicle, but the graph mode made it extremely easy. NCV works great, and the beep is audible enough but not annoying. I was also impressed with the battery capacity. I fully charged the device and had this thing running in frigid temperature (30 to 40°F in the shade) for about 3-4 hours while performing the test, and the battery level meter only went down from a total of seven bars to six. In terms of size and weight, it's about average in its class. You can put it in your pocket, but you'll definitely notice it's in there. This multimeter is definitely worth the investment. It more than paid itself off after a single use. Even accounting for the Lisle 64970 harness, the combined cost of the two ($60) is vastly less than what mechanics charge for parasitic battery drain testing, which can range from anywhere from $120 to $200 depending on where you live.
Review: Pro low voltage tech who's guilty pleasures is multimeters. - So. Where to begin. I broke two different flukes and I got a bit tired of shelling out $150 plus to buy a new one. Been doing this stuff for 20+ years and a meter is a daily tool. Got into a fling with aneng meters and those did not dissappoint. Got used to the auto function and with two adhesive magnet strips on the back, you can park them above the ceiling and still have both hands free. Would recommend those. Still. And then I found this one. Eh. Wow. The voltage over time read out is awesome. I can walk over to a request to exit button and walk back to the meter and it shows the voltage drop over time. That's.. well? Awesome. I dont need someone on the other end to tell me the voltage dropped. Its right there on the screen. The meter overall is as precise as one of the more expensive ones you can buy. First impressions tell me the whole thing is pretty sturdy and the leads are the same kind of quality you'd expect from a high dollar meter. The auto function works just as well as the aneng meters. Whatever you put on the leads is accurately displayed on the screen. VDC, VAC, resistance.. you name it. It is a bit slow to decide what it's looking at but that doesn't bother me. I get paid by the hour. The screen is the ultimate party trick. Whether above the ceiling in the dark or in bright sunlight. Always completely legible. Fluke should take notes when it comes to this. I also like the type C usb charger port. It charges fast and I can hook it into my vehicle charger all day. All in all. I've been in this business for quite a while. And I've probably put my hands on quite a few meters. This one truly stands out. The only thing missing is a magnet but I overcame that by using epoxy to glue a magdaddy magnet into the hanging hole. Done. For short. I don't know if it's the availability of newer IC's or cheaper screens, this is the one I'm gonna stick with for quite a while. No party tricks. Just a very useful companion for my day to day work. Try it. You won't be disappointed.

## Features

- 【9999 Counts & Rechargeable】FNIRSI DMT-99 digital multimeter features high-resolution 9999-count True RMS for accurate AC/DC measurements across various electrical systems. The built-in 1500mAh rechargeable lithium battery with Type-C charging eliminates frequent battery replacement, making it ideal for extended electronics repair and field testing
- 【Smart Auto-Identification】Streamline troubleshooting with Auto-Mode, which instantly detects AC/DC voltage, resistance, and continuity. This rechargeable multimeter also supports AC/DC current, NCV, frequency, and diode testing—providing comprehensive coverage for automotive diagnostics and household electrical safety
- 【Graphic Waveform & Monitoring】This automotive multimeter plots real-time ripples via Graphic View, visualizing voltage/current fluctuations as waveforms to capture transient spikes traditional meters miss. Monitoring Mode triggers automatic alarms based on custom thresholds—enabling hands-free tracking of intermittent faults for efficient diagnostics
- 【Vivid Screen & Anti-Burn Pro】This multimeter features a 2.4" HD TFT color screen with adjustable brightness for crystal-clear visibility in any lighting. Engineered for maximum safety, it incorporates dual ceramic fuses and advanced protection circuitry to reducing the risk of accidental burn-outs during complex automotive circuitry and industrial tasks
- 【User-friendly Design】Includes ultra-fine multimeter test leads perfected for SMD and tight circuit boards. This compact multimeter features a back-integrated kickstand and storage slots, delivering a grab-and-go solution that eliminates clutter for technicians demanding precision on the move

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CQRKR17W |
| Best Sellers Rank | #8,671 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #19 in Multi Testers |
| Brand | FNIRSI |
| Brand Name | FNIRSI |
| Color | Black and Blue |
| Compatible Devices | Devices with electrical components (e.g., automotive electrical systems, home appliances, electronic devices) |
| Customer Reviews | 4.6 out of 5 stars 1,268 Reviews |
| Included Components | Smart Color TFT Multimeter, Test Leads, Type-C charging cable, User guide |
| Item Dimensions | 6.01 x 3.15 x 1.52 inches |
| Item Weight | 6.72 ounces |
| Item dimensions L x W x H | 6.01 x 3.15 x 1.52 inches |
| Manufacturer | FNIRSI |
| Measurement Type | Ammeter, Multimeter, Ohmmeter, Voltmeter |
| Minimum Operating Voltage | 10 volts |
| Model | FNIRSI-DMC-100 |
| Part Number | DMT-99 |
| Power Source | Battery Powered |
| Specification Met | CE |
| Style | 10000 Counts AC Current |
| Style Name | 10000 Counts AC Current |
| Upper Temperature Rating | 1300 °C |

## Product Details

- **Brand:** FNIRSI
- **Color:** Black and Blue
- **Item Weight:** 6.72 ounces
- **Power Source:** Battery Powered
- **Style:** Classic

## Images

![DMT-99 Multimeter - Image 1](https://m.media-amazon.com/images/I/71jjLxiiGRL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Graph mode allows for easy testing of automotive parasitic drain
*by ಠ***ಠ on January 16, 2026*

This thing does everything that a multimeter should do. What sets the DMT-99 apart from other multimeters in its price range ($37 at the time of writing this review) is its digital display with the graph mode, which cycles after a little over 30 seconds, and makes it infinitely easier to diagnose those pesky intermittent parasitic drain that spikes for a second and then goes away for the next 2-3 minutes. Other multimeters in this price range lack this feature. I purchased this multimeter and combined it with a Lisle 64970 parasitic drain testing harness to test my vehicle for intermittent parasitic drain. The graph mode (shown as the "recording mode") made it a lot easier since I didn't have to keep my eyes glued to the display the entire time. It also has the ability to display minimum and maximum detected levels. The only downside is there isn't a way to scroll back to see older chart, but you can mark and save the displayed current/voltage. Fortunately, the level of parasitic drain I discovered is within the norm of a modern vehicle, but the graph mode made it extremely easy. NCV works great, and the beep is audible enough but not annoying. I was also impressed with the battery capacity. I fully charged the device and had this thing running in frigid temperature (30 to 40°F in the shade) for about 3-4 hours while performing the test, and the battery level meter only went down from a total of seven bars to six. In terms of size and weight, it's about average in its class. You can put it in your pocket, but you'll definitely notice it's in there. This multimeter is definitely worth the investment. It more than paid itself off after a single use. Even accounting for the Lisle 64970 harness, the combined cost of the two ($60) is vastly less than what mechanics charge for parasitic battery drain testing, which can range from anywhere from $120 to $200 depending on where you live.

### ⭐⭐⭐⭐⭐ Pro low voltage tech who's guilty pleasures is multimeters.
*by G***T on November 7, 2024*

So. Where to begin. I broke two different flukes and I got a bit tired of shelling out $150 plus to buy a new one. Been doing this stuff for 20+ years and a meter is a daily tool. Got into a fling with aneng meters and those did not dissappoint. Got used to the auto function and with two adhesive magnet strips on the back, you can park them above the ceiling and still have both hands free. Would recommend those. Still. And then I found this one. Eh. Wow. The voltage over time read out is awesome. I can walk over to a request to exit button and walk back to the meter and it shows the voltage drop over time. That's.. well? Awesome. I dont need someone on the other end to tell me the voltage dropped. Its right there on the screen. The meter overall is as precise as one of the more expensive ones you can buy. First impressions tell me the whole thing is pretty sturdy and the leads are the same kind of quality you'd expect from a high dollar meter. The auto function works just as well as the aneng meters. Whatever you put on the leads is accurately displayed on the screen. VDC, VAC, resistance.. you name it. It is a bit slow to decide what it's looking at but that doesn't bother me. I get paid by the hour. The screen is the ultimate party trick. Whether above the ceiling in the dark or in bright sunlight. Always completely legible. Fluke should take notes when it comes to this. I also like the type C usb charger port. It charges fast and I can hook it into my vehicle charger all day. All in all. I've been in this business for quite a while. And I've probably put my hands on quite a few meters. This one truly stands out. The only thing missing is a magnet but I overcame that by using epoxy to glue a magdaddy magnet into the hanging hole. Done. For short. I don't know if it's the availability of newer IC's or cheaper screens, this is the one I'm gonna stick with for quite a while. No party tricks. Just a very useful companion for my day to day work. Try it. You won't be disappointed.

### ⭐⭐⭐⭐⭐ Good quality for a better price.
*by B***A on June 27, 2026*

For the price you pay, this is worth every penny. I do a lot of diagnosis and electronic repair in both automotive and small devices, and this multimeter has already paid for itself. Its very easy to use with its auto functions, and the leads that come with it are quite nice, its easy to see what it displays with its digital display, making using and reading values quite easy.

## Frequently Bought Together

- FNIRSI DMT-99 Digital Multimeter 9999 Counts TRMS, Rechargeable Auto-Ranging Volt Meter with Recording and Monitoring Data Mode, Resistance, Capacitance, Diode, Frequency, NCV, Current Voltage Tester
- Aproca Portable Hard Storage Case, for FNIRSI DMT-99 Digital Multimeter 9999 Counts TRMS and Accessories (Case Only)
- FNIRSI LCR-P1 Transistor Tester, Mosfet Transistor Capacitor Tester, SMD Electronic Component Tester, Diode Triode Zener Diode Resistance Inductance Battery Test LCR Meter MOS PNP NPN ESR Meter

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-08-09*