---
product_id: 22506626
title: "DROK Digital Multimeter DC 8-100V 20A Voltage Amperage Power Energy Meter, DC Volt Amp Tester Gauge Monitor LCD Digital Display with Built-in Shunt"
brand: "drok"
price: "$975"
currency: MXN
in_stock: true
reviews_count: 13
category: "Drok"
url: https://www.desertcart.mx/products/22506626-drok-digital-multimeter-dc-8-100v-20a-voltage-amperage-power
store_origin: MX
region: Mexico
---

# 20A max current capacity Simultaneous multi-parameter LCD display 8-100V DC voltage range DROK Digital Multimeter DC 8-100V 20A Voltage Amperage Power Energy Meter, DC Volt Amp Tester Gauge Monitor LCD Digital Display with Built-in Shunt

**Brand:** drok
**Price:** $975
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your projects with precision and style!

## Quick Answers

- **What is this?** DROK Digital Multimeter DC 8-100V 20A Voltage Amperage Power Energy Meter, DC Volt Amp Tester Gauge Monitor LCD Digital Display with Built-in Shunt by drok
- **How much does it cost?** $975 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/22506626-drok-digital-multimeter-dc-8-100v-20a-voltage-amperage-power)

## Best For

- drok enthusiasts

## Why This Product

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

## Key Features

- • **Pro-Level Precision:** Accurate readings within 1.0 grade ensure your measurements are reliable and actionable.
- • **Smart Voltage Alarm:** Stay ahead of electrical risks with an over-voltage alert that flashes and backlights to catch your eye.
- • **Effortless Installation:** Built-in shunt and clear 4-point terminal wiring make setup quick and foolproof—no electrician needed.
- • **All-in-One Power Insight:** Monitor voltage, current, power & energy simultaneously on a crisp large LCD for instant clarity.
- • **Data Persistence & Reset:** Store your data even when powered off and reset accumulated energy with a simple button press for ongoing tracking.

## Overview

The DROK Digital Multimeter is a compact, professional-grade DC volt-amp tester designed for 8-100V and up to 20A current. Featuring a large backlit LCD that simultaneously displays voltage, current, power, and energy, it includes a built-in shunt for easy wiring and a smart over-voltage alarm. Ideal for indoor use, it stores data during power off and allows energy reset, making it perfect for monitoring battery systems, solar panels, and DC loads with reliable 1.0 grade accuracy.

## Description

Parameters: Working Voltage: 6.5~100VDC; Measuring Range: 6.5~100VDC; Rated Power: 20A/2000W; Measuring Accuracy: 1.0 grade. Test range and display format: Power Range: 0~2kW within 1kW, display 0.0~999.9W; above 1kW, display 1000~2000W. Energy Range: 0~9999kWh within 10KWh, display 0~9999Wh; above 10kWh, display 10~9999kWh. Voltage Range: 6.5~100V(display 6.50~99.99V), Current Range: 0~20A(display 0.00~20.00A). Note: This module is suitable for indoor, please do not use outdoor. Applied load should not exceed the rated voltage or current. Wiring order can't be wrong. Package Includes: 1x DC Power Multimeter.

Review: Easy to install works as designed. - Added a 12v RV AC unit and wanted to monitor the amp draw. What a simple and great monitor. Easy to wire and use for battery draw tracking.
Review: Great value in this inexpensive meter. - The meter works as advertised and for the price it has excellent value. Note that the current meter is in the negative side between DC IN - and Load -. This is important if you use a switch, like I do, to change the meter's polarity between charging and discharging a battery. The current meter will not run backwards. In other words, the meter will only increase its reading when positive current flows in the direction of DC IN + to Load +. Current will flow in the other direction, but the power and current meters will not read negative values, and the Watt-hour meter will not decrease its reading. To use the meter to monitor power from a solar panel to a battery, I connect the solar panel to the DC IN + and DC IN - terminals, and the battery itself to the Load + and Load - terminals. When discharging the battery into the intended load, I reconnect the meter (using a switch) into its conventional connection topology. Since the current meter is in the negative side, DC IN + and Load + are connected together in the unit. In other words, they are the same node. The unit is made to mount in a square hole in 0.032" thick material. I used a thin bead of Silicone adhesive around the bezel to strengthen this mechanical connection. The operation of the screw terminals can be confusing, and can lead to damage if one is not careful. They come tightened down, so to connect a wire first loosen the terminal by turning the screw counterclockwise several turns, insert the wire in the gap that's just been opened, and then tighten the screw in a clockwise direction. I verified that the terminal block will accept 12 gauge wire.

## Features

- The portable multi-meter has a Large-screen LCD, can display voltage, current, power, energy at the same time, bright and easy to read.
- Voltage test range: DC 8~100V; Current test range: 0~20A; Power test range: 0~2KW; Energy test range: 0~9999kWh.
- Multifunctional: the accumulated energy can be reset by button; Store data when power off; Voltage alarm function (over voltage alarm threshold, backlight and voltage will flash to alarm).
- Easy to hook up: with built-in shunt, 2 wires in (DC + and -) and 2 wires out (The Load), all connections are via a 4 point terminal strip(has a wiring diagram on its back).
- The blue backlight can be turned on/off by the front accessible recessed switch located on the right side bezel.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B017FSED9I |
| Best Sellers Rank | #107,475 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #171 in Multi Testers |
| Brand | DROK |
| Color | Blue |
| Date First Available | November 1, 2015 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.32 ounces |
| Item dimensions L x W x H | 3.53 x 1.95 x 0.96 inches |
| Item model number | 200139US |
| Manufacturer | DROK |
| Measurement Type | Multimeter |
| Min. Operating Voltage | 8 |
| Power Source | Battery Powered |
| Product Dimensions | 3.53 x 1.95 x 0.96 inches |
| Style | 20A |

## Product Details

- **Brand:** DROK
- **Color:** Blue
- **Item Weight:** 0.02 Pounds
- **Power Source:** Battery Powered
- **Style:** 20A

## Images

![DROK Digital Multimeter DC 8-100V 20A Voltage Amperage Power Energy Meter, DC Volt Amp Tester Gauge Monitor LCD Digital Display with Built-in Shunt - Image 1](https://m.media-amazon.com/images/I/61Ez76GD8lL.jpg)

## Questions & Answers

**Q: Can the voltage be calibrated?  Mine was accurate initially but now displays ~19v with a 12v line supply. The load side reads 12v with a multimeter.**
A: Same thing happened after 2 months to mine!!! I was wondering what happened. My solar panels produce about 36 volts, now it's displaying 50-60, throwing the wattage reading way off. If anyone knows how to calibrate it, let us know please.

**Q: How do you hook up this gauge with its tiny wires/connections when all of the cabling in a solar system is much heavier gauge? seems like a botleneck!**
A: All of the current ( AMPS)  go through the SHUNT ( rated at 20 AMPS ) the small wires that go to the display unit from the SHUNT are only supplying very low current / low voltage to the display unit that gives it the value of the current ( AMPS ) that are passing through the SHUNT. I have the 100 AMP SHUNT version of this unit and it works very well. Again, all the current and the voltage your measuring with this unit are derived at the SHUNT and it can handle a lot of current and will NOT restrict or bottleneck the current or the voltage you want to measure. Hope this helps.

**Q: What is "dc in" in the diagram on the back of the device? is it battery?**
A: This is the dc from the source that you want to monitor. It could be from a battery, power supply, solar cell, generator, etc.

**Q: The button for backlight looks recessed. Do you need something like a pen to push the button?**
A: Yes! And it is also used to set several parameters which is OK if your use is in a PERMANENT setup. In my case it is only a test meter, and it becomes a pain to just reset the Watt.Hr meter...  Also everytime it is powered up the backlight comes up flashing... Neat instrument otherwise..

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to install works as designed.
*by J***C on September 11, 2025*

Added a 12v RV AC unit and wanted to monitor the amp draw. What a simple and great monitor. Easy to wire and use for battery draw tracking.

### ⭐⭐⭐⭐⭐ Great value in this inexpensive meter.
*by D***E on April 25, 2016*

The meter works as advertised and for the price it has excellent value. Note that the current meter is in the negative side between DC IN - and Load -. This is important if you use a switch, like I do, to change the meter's polarity between charging and discharging a battery. The current meter will not run backwards. In other words, the meter will only increase its reading when positive current flows in the direction of DC IN + to Load +. Current will flow in the other direction, but the power and current meters will not read negative values, and the Watt-hour meter will not decrease its reading. To use the meter to monitor power from a solar panel to a battery, I connect the solar panel to the DC IN + and DC IN - terminals, and the battery itself to the Load + and Load - terminals. When discharging the battery into the intended load, I reconnect the meter (using a switch) into its conventional connection topology. Since the current meter is in the negative side, DC IN + and Load + are connected together in the unit. In other words, they are the same node. The unit is made to mount in a square hole in 0.032" thick material. I used a thin bead of Silicone adhesive around the bezel to strengthen this mechanical connection. The operation of the screw terminals can be confusing, and can lead to damage if one is not careful. They come tightened down, so to connect a wire first loosen the terminal by turning the screw counterclockwise several turns, insert the wire in the gap that's just been opened, and then tighten the screw in a clockwise direction. I verified that the terminal block will accept 12 gauge wire.

### ⭐⭐⭐⭐ Best cheap shunt on the market.
*by H***R on May 25, 2025*

I've got a few of these in my go boxes and RV. I love that they are simple, basic and just work. I also love that they have a watt hour use meter that can be reset to count again. A feature all shunts should have, but most don't. It's fairly accurate when measured against my Fluke 289 but off a few 10s of mV. It has higher resolution at 10mV and 10mA than most shunts. I wish it had "bi directional" readings so could read charge and discharge and I wish the shunt itself had holes in it to better mount. Lastly the 50A version is no longer available, but great for smaller installs. But even with the small draw backs this is a great shunt for the money. If you are wanting bi directional or SOC (which is never really accurate anyway) this may not be the shunt for you.

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-02-18*