---
product_id: 633939161
title: "DROK Digital Multimeter, DC 8-100V 100A Battery Monitor 12V 24V 36V 48V 60V Volt Amp Watt Meter, Big Color Screen LCD Display Capacity Time Power Voltmeter Ampmeter for RV Solar Panel Battery Charge"
brand: "drok"
price: "₨41874"
currency: LKR
in_stock: true
reviews_count: 7
category: "Drok"
url: https://www.desertcart.lk/products/633939161-drok-digital-multimeter-dc-8-100v-100a-battery-monitor-12v
store_origin: LK
region: Sri Lanka
---

# 8-100V DC voltage range 2.4-inch high-contrast color LCD 0.05-100A current range DROK Digital Multimeter, DC 8-100V 100A Battery Monitor 12V 24V 36V 48V 60V Volt Amp Watt Meter, Big Color Screen LCD Display Capacity Time Power Voltmeter Ampmeter for RV Solar Panel Battery Charge

**Brand:** drok
**Price:** ₨41874
**Availability:** ✅ In Stock

## Summary

> 🔋 Stay charged, stay ahead — master your power like a pro!

## Quick Answers

- **What is this?** DROK Digital Multimeter, DC 8-100V 100A Battery Monitor 12V 24V 36V 48V 60V Volt Amp Watt Meter, Big Color Screen LCD Display Capacity Time Power Voltmeter Ampmeter for RV Solar Panel Battery Charge by drok
- **How much does it cost?** ₨41874 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/633939161-drok-digital-multimeter-dc-8-100v-100a-battery-monitor-12v)

## 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

- • **Smart Alarm Alerts:** Backlight flashes on low capacity, voltage, or high charging current to keep you ahead
- • **Vivid Color Display:** Large 2.4-inch LCD with adjustable backlight ensures clear readings day or night
- • **Precision Power Tracking:** ±1% voltage & ±0.5% current accuracy for reliable battery insights
- • **Versatile Multi-Application:** Perfect for RVs, solar panels, boats, and automotive battery monitoring
- • **Customizable Power Management:** Set auto screen off/on thresholds and battery capacity for tailored energy control

## Overview

The DROK Digital Multimeter is a high-precision battery monitor designed for DC systems from 8 to 100V and currents up to 100A. Featuring a vibrant 2.4-inch color LCD, it delivers real-time voltage, current, power, and capacity data with ±1% voltage and ±0.5% current accuracy. Its smart backlight alarm system alerts users to critical battery states, while customizable settings optimize power management for RVs, solar setups, and automotive applications. Engineered for professionals who demand precise energy insights and control.

## Description

DROK DC 8-100V Coulombmeter 100A Parameter Voltage: 8-100V Current: 0.05-100A Capacity: 0.1-99999AH Power: 50KW Voltage Precision: ±1% + 2 digits Current Precision: ±0.5% + 2 digits Measure Speed: 20 Times per Second Display Board Size: 86*53*17mm/3.39*2.08*0.67in Measure Board Size: 56*36*34mm/2.20*1.42*1.34in Function 1.CLR: current clear function. When no-load current is not zero, enter this function, Short press ▲ to clear the no-load current. 2.BAT: set battery total capacity. 3.BPC: set available capacity percentage. 4.LED: set LCD screen backlight brightness. Level 0-10 can be adjusted 5.STE: set screen turn off time. when working time is longer than the set time, screen will auto turn off. 6.STI: set current value for turning off screen. When measure current is lower than the set value, screen will auto turn off. When measure current is higher than the set value, screen will auto turn on. 7.BKC: set the screen display colors, total 2 colors to choose, black-white and colorful. 8.LAG: set the language(English/Chinese). 9.LVP: Low voltage alarm. When voltage is lower than LVP value, the capacity will auto clear. 10.LBR: turn on/off backlight alarm. After turning on LBR, when the remain capacity is lower than 20% or voltage is lower than LVP, the backlight will flashing to alarm. When charging current is higher than STI, the backlight will also flash. 11.ADS: Communication Address. 12.PAI: the value of current clear. After no-load current clear, the shunt might make current higher than zero, which can set PAI. When current is lower than the set value, the current value will zero. 13.OVP: the voltage value of max capacity. When battery voltage is higher than OVP, the capacity will auto fill up.

Review: Works Great - In simple terms, this works by adding up current going both directions. The meter itself uses almost no power and will not affect how long your system runs on battery. The instructions can be somewhat confusing if you don't have a good grasp of how circuits work. The wiring diagram - how you physically connect it - is very clear though. Here's an example of a basic config: I have 2x 12v AGM batteries, each 150 Ah, connected in series for 24v. My inverter cuts out at 10.6v. BAT = 150 - this is the battery raw capacity in Amp-hours. BPC = 40 - I chose 40% since discharging much below that shortens battery life. For Lithium you could set much higher like 80 - 95%. STI = 0.3 - if current is less than 0.3 amps either in or out, the display shuts off to save a bit of power. LVP = 23.5 - this tells the unit that the batteries are essentially 'dead' at this voltage. I chose 23.5v because that's about 40% capacity when under moderate load (C/10). LBR = On. - This causes the display to 'flash' (actually it's more like pulsing) if capacity is lower than 20%, OR voltage is lower than LVP, OR your batteries are charging. PAI = 0.06 - This setting is key to making sure the system does not drift. I found 0.06 amps works for me. Basically this means that any tiny errors in current measurement get reset to zero. All the other settings are not as critical and can be left as-is for most uses. I found that voltage measurements are accurate, and current measurement with the included shut is also accurate. I've used this in several actual power outages, and it works flawlessly. It comes with 2 connector cords, one short and one long, to fit your installation. The clear cover is nice too, keeps the dust out.
Review: Read this, many don't understand what this does - Being an engineer I see a lot of miss-information about these units, not just this one. Yes the so called "manual" is a sheet of paper written for someone who understands electricity, voltage and amperage. It's sparse and poorly written and it's hard to understand, especially if you aren't an engineer. That being said, it is a good unit, and it does what it says it will do. And no, it's not a power hog, the person complaining about that most likely didn't know there is a feature to "zero" the meter when no current is being drawn from the battery. Even with the manual it can be a little hard to setup, but once you do, it is pretty much smooth sailing from there. And these devices are a MUST if you really want to know what the state of charge is on your LifePo4 batteries. Lead acid batteries don't need this but can benifit from it's use. WHAT THIS UNIT DOES is measure CURRENT or AMPS being Put Into or Drawn Out of the Batterie/s. And this is important for Lithium type batteries. Think of this as a water glass monitor, when you use the batteries, your pouring water out of the glass, and when you're charging the batteries, your putting water back in, all the way to the top of the glass which is 100 percent charge. Current out is water poured out, and when it reaches zero, well the batteries are exhausted. BASIC SETUP: Press and HOLD the OK button until the setup menu pops up. Use the up and down arrow keys to switch between settings. Now move to the BAT setting and press OK, this enters the setup for the battery capacity in AH or amp hours. Use the down arrow to move to different number positions and use the UP arrow to advance / make changes to the number. Once your happy with your selection, press OK to exit that screen so you can use the up and down arrows to move to another screen. Example: if you have a 200 ah battery, enter "200" on the BAT screen and save. Next, move to the BPC screen, press OK to enter it and change the numbers to the state of charge of your battery, (if you know it). If you don't know it make a guess but it's easier if you fully charge the batteries before making this setting because that way you can set BPC to 100% which is fully charged. Press OK to exit that setting and Press and Hold the OK button for 5 seconds to save and exit the settings screen. Those are the main basic settings you must set in order to get accurate measurements from the meter. NOTE: You should also setup the LVP which is low voltage alarm setting, on a LifePo4 battery I recomment setting this to "11.2" which is just above total zero battery charge. If the voltage reaches this level, it will automatically zero the state of charge indicator. Set the CLR setting if the current reading is showing a current reading when there is no load connected. That is what this setting is for, to zero the no load current value. Set the OVP value to "14.5" or "14.4" as this is where LifePo4 Batteries are fully charged and the internal bms inside the battery should stop charging, thus a 100% full charge. If the voltage reaches this value it will automatically re-adjust the BPC setting to 100%. The PIA setting is related to the CLR setting and usually doesn't require adjustment. STE setting is in seconds before the screen blanks automaticlly. This is used with the STI setting. STI setting is the shutoff point for the display when the current falls below this value. Example: set to 1 amp when the value falls below 1 amp going into or out of the battery, the screen will blank in how ever many seconds you setup in the STE settings. I hope this brief explanation will help those struggling with these units. I will update if there is a problem in the future.

## Features

- Parameter --- Voltage Range: 8-100V; Current Range: 0.05-100A; Power: 0-50KW; Capacity: 0.1-99999AH; Voltage Accuracy: ±1%+2digits; Current Precision: ±0.5%+2digits; Measure Speed: 20 Time/s.
- LCD Display --- This coulometer is equipped with 2.4 inches LCD high precision color screen. Bigger size and higher contrast, easily and clearly to read the parameters whenever at night and day, indoor or outside, even under the sunshine.
- Backlight Alarm --- After turning on LBR function, when the remain capacity is lower than 20% or voltage is lower than LVP; the backlight will flash to alarm. The backlight will also flash when charging current is higher than STI(the current value for turning off screen).
- APPLICATION --- can be used as battery charge discharge tester meter coulometer for automotive and car battery; as battery capacity monitor for solar panel; as voltage meter, ampere meter, power meter for RV Boat, etc. Mounting with base for more stability.
- Warranty --- This coulometer has totally one-year long period warranty guarantee since you get the item.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D146ZJL2 |
| Best Sellers Rank | #60,381 in Automotive ( See Top 100 in Automotive ) #14 in Multimeters & Analyzers |
| Brand | DROK |
| Color | black |
| Date First Available | April 8, 2024 |
| Item Weight | 14.4 ounces |
| Manufacturer | DROK |
| Measurement Type | Multimeter |
| Min. Operating Voltage | 8 Volts (DC) |
| Package Dimensions | 6.69 x 6.65 x 2.13 inches |
| Power Source | Battery Powered |
| Specification Met | CE, EMC, EN 61010-1 |
| Style | Industrial |

## Product Details

- **Brand:** DROK
- **Color:** black
- **Min. Operating Voltage:** 8 Volts (DC)
- **Power Source:** Battery Powered
- **Style:** Industrial

## Images

![DROK Digital Multimeter, DC 8-100V 100A Battery Monitor 12V 24V 36V 48V 60V Volt Amp Watt Meter, Big Color Screen LCD Display Capacity Time Power Voltmeter Ampmeter for RV Solar Panel Battery Charge - Image 1](https://m.media-amazon.com/images/I/71V0Uwq6yeL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works Great
*by W***4 on April 15, 2025*

In simple terms, this works by adding up current going both directions. The meter itself uses almost no power and will not affect how long your system runs on battery. The instructions can be somewhat confusing if you don't have a good grasp of how circuits work. The wiring diagram - how you physically connect it - is very clear though. Here's an example of a basic config: I have 2x 12v AGM batteries, each 150 Ah, connected in series for 24v. My inverter cuts out at 10.6v. BAT = 150 - this is the battery raw capacity in Amp-hours. BPC = 40 - I chose 40% since discharging much below that shortens battery life. For Lithium you could set much higher like 80 - 95%. STI = 0.3 - if current is less than 0.3 amps either in or out, the display shuts off to save a bit of power. LVP = 23.5 - this tells the unit that the batteries are essentially 'dead' at this voltage. I chose 23.5v because that's about 40% capacity when under moderate load (C/10). LBR = On. - This causes the display to 'flash' (actually it's more like pulsing) if capacity is lower than 20%, OR voltage is lower than LVP, OR your batteries are charging. PAI = 0.06 - This setting is key to making sure the system does not drift. I found 0.06 amps works for me. Basically this means that any tiny errors in current measurement get reset to zero. All the other settings are not as critical and can be left as-is for most uses. I found that voltage measurements are accurate, and current measurement with the included shut is also accurate. I've used this in several actual power outages, and it works flawlessly. It comes with 2 connector cords, one short and one long, to fit your installation. The clear cover is nice too, keeps the dust out.

### ⭐⭐⭐⭐⭐ Read this, many don't understand what this does
*by B***. on November 3, 2023*

Being an engineer I see a lot of miss-information about these units, not just this one. Yes the so called "manual" is a sheet of paper written for someone who understands electricity, voltage and amperage. It's sparse and poorly written and it's hard to understand, especially if you aren't an engineer. That being said, it is a good unit, and it does what it says it will do. And no, it's not a power hog, the person complaining about that most likely didn't know there is a feature to "zero" the meter when no current is being drawn from the battery. Even with the manual it can be a little hard to setup, but once you do, it is pretty much smooth sailing from there. And these devices are a MUST if you really want to know what the state of charge is on your LifePo4 batteries. Lead acid batteries don't need this but can benifit from it's use. WHAT THIS UNIT DOES is measure CURRENT or AMPS being Put Into or Drawn Out of the Batterie/s. And this is important for Lithium type batteries. Think of this as a water glass monitor, when you use the batteries, your pouring water out of the glass, and when you're charging the batteries, your putting water back in, all the way to the top of the glass which is 100 percent charge. Current out is water poured out, and when it reaches zero, well the batteries are exhausted. BASIC SETUP: Press and HOLD the OK button until the setup menu pops up. Use the up and down arrow keys to switch between settings. Now move to the BAT setting and press OK, this enters the setup for the battery capacity in AH or amp hours. Use the down arrow to move to different number positions and use the UP arrow to advance / make changes to the number. Once your happy with your selection, press OK to exit that screen so you can use the up and down arrows to move to another screen. Example: if you have a 200 ah battery, enter "200" on the BAT screen and save. Next, move to the BPC screen, press OK to enter it and change the numbers to the state of charge of your battery, (if you know it). If you don't know it make a guess but it's easier if you fully charge the batteries before making this setting because that way you can set BPC to 100% which is fully charged. Press OK to exit that setting and Press and Hold the OK button for 5 seconds to save and exit the settings screen. Those are the main basic settings you must set in order to get accurate measurements from the meter. NOTE: You should also setup the LVP which is low voltage alarm setting, on a LifePo4 battery I recomment setting this to "11.2" which is just above total zero battery charge. If the voltage reaches this level, it will automatically zero the state of charge indicator. Set the CLR setting if the current reading is showing a current reading when there is no load connected. That is what this setting is for, to zero the no load current value. Set the OVP value to "14.5" or "14.4" as this is where LifePo4 Batteries are fully charged and the internal bms inside the battery should stop charging, thus a 100% full charge. If the voltage reaches this value it will automatically re-adjust the BPC setting to 100%. The PIA setting is related to the CLR setting and usually doesn't require adjustment. STE setting is in seconds before the screen blanks automaticlly. This is used with the STI setting. STI setting is the shutoff point for the display when the current falls below this value. Example: set to 1 amp when the value falls below 1 amp going into or out of the battery, the screen will blank in how ever many seconds you setup in the STE settings. I hope this brief explanation will help those struggling with these units. I will update if there is a problem in the future.

### ⭐⭐⭐⭐⭐ Really nice meter with hidden capabilities
*by A***B on December 18, 2024*

At first this meter seemed daunting to install but in actual practice it is rather easy to install and get working. I do like the fact that it displays both output and input charge and estimates remaining battery time based on output rate. Very nice meter.

## Frequently Bought Together

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-06*