---
product_id: 611054145
title: "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"
brand: "fnirsi"
price: "$U4038"
currency: UYU
in_stock: true
reviews_count: 11
category: "Fnirsi"
url: https://www.desertcart.uy/products/611054145-dmt-99-digital-multimeter-9999-counts-trms-rechargeable-auto-ranging
store_origin: UY
region: Uruguay
---

# 9999 counts TRMS precision 2.4-inch full-color TFT display 1500mAh rechargeable battery 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

**Brand:** fnirsi
**Price:** $U4038
**Availability:** ✅ In Stock

## Summary

> ⚡ Empower Your Diagnostics with Smart Precision

## Quick Answers

- **What is this?** 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 by fnirsi
- **How much does it cost?** $U4038 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/611054145-dmt-99-digital-multimeter-9999-counts-trms-rechargeable-auto-ranging)

## 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

- • **Visualize the Invisible:** Innovative recording and monitoring modes graph voltage/current fluctuations over time, making intermittent issues crystal clear.
- • **Stay Powered, Stay Ready:** Built-in 1500mAh rechargeable battery with USB Type-C charging means no more hunting for disposable batteries—work uninterrupted.
- • **Tailored for Your Workflow:** 2.4-inch vibrant TFT screen with DIY startup interface lets you customize your multimeter experience—even in low light.
- • **Precision at Your Fingertips:** Auto-ranging TRMS with 9999 counts ensures ultra-accurate voltage, current, and resistance readings every time.
- • **Custom Alerts for Critical Thresholds:** Set personalized voltage/current limits and get instant warnings to prevent costly equipment damage or downtime.

## Overview

The FNIRSI DMT-99 is a professional-grade digital multimeter featuring 9999 counts TRMS accuracy, a rechargeable 1500mAh battery with USB-C charging, and a vibrant 2.4-inch full-color TFT display. It offers advanced recording and monitoring modes to track voltage and current fluctuations over time, customizable alert thresholds, and intelligent auto-ranging for fast, precise measurements. Ideal for automotive, electronics, and home appliance diagnostics, it combines cutting-edge tech with user-friendly customization to elevate your troubleshooting game.

## Description

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: 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 this 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: Nice meter, easy to use, not alot of money - First this was well packaged from the factory, has a well written manual. Im looking forward to using the monitor and record features on this meter. This should help when troubleshooting an intermittent problem. The display is easy to read and seems easy to change what settings your usng. It has a rechargeable battery installed in it, which was mostly charged when it arrived. This is a fantastic value for the features it has.

## Features

- 【Recording Mode】FNIRSI multimeter can plot measured value ripple that changes over time is drawn, and the fluctuation of voltage or current over time can be observed. 8 measured values can be recorded, and the Max and Min measurement values are displayed
- 【Monitoring mode】Custom thresholds can be set in multimeter monitoring mode, and a warning will be issued if the voltage exceeds or falls below the set threshold
- 【Solving hunger】Built-in 1500 mAh rechargeable battery allows the multimeter tester to work longer. No more manually replacing bulky, unfindable disposable batteries, the Type-c port renews energy at any time
- 【Intelligent Mode】In intelligent mode, DMT-99 digital multimeter can identify the measurement content and select the range with the best resolution, making the measurement more convenient and faster,Takes out the guesswork for most applications
- 【Private customization】2.4-inch full-color TFT screen display, 240*320 resolution, makes it easy to use in dimly light areas. Supports DIY startup interface and creates your own personal entry interface
- 【Intelligent Multimeter】It measures AC/DC voltage, AC/DC current, and can be used to test resistance, capacitance, continuity, diode, NCV and live wire etc. Applicable to automotive, home appliances, other electronic repair. Dual ceramic fuse protection

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CQRKR17W |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | #8,650 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #14 in Multi Testers |
| Brand | FNIRSI |
| Color | Black and Blue |
| Date First Available | February 20, 2024 |
| Item Weight | 6.7 ounces |
| Item dimensions L x W x H | 6.01 x 3.15 x 1.52 inches |
| Item model number | DMT-99 |
| Manufacturer | FNIRSI |
| Measurement Type | Ammeter, Multimeter, Ohmmeter, Voltmeter |
| Min. Operating Voltage | 10 Volts |
| Power Source | Battery Powered |
| Product Dimensions | 6.01 x 3.15 x 1.52 inches |
| Specification Met | CE |
| Upper Temperature Rating | 1300 Degrees Celsius |

## Product Details

- **Brand:** FNIRSI
- **Color:** Black and Blue
- **Item Weight:** 0.42 Pounds
- **Item dimensions L x W x H:** 6.01 x 3.15 x 1.52 inches
- **Power Source:** Battery Powered

## Images

![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 - 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 this 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.

### ⭐⭐⭐⭐⭐ Nice meter, easy to use, not alot of money
*by S***Y on November 30, 2025*

First this was well packaged from the factory, has a well written manual. Im looking forward to using the monitor and record features on this meter. This should help when troubleshooting an intermittent problem. The display is easy to read and seems easy to change what settings your usng. It has a rechargeable battery installed in it, which was mostly charged when it arrived. This is a fantastic value for the features it has.

### ⭐⭐⭐⭐⭐ 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.

## 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
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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-03-21*