---
product_id: 28274208
title: "bayite Pack of 5 Three-Wire Calibratable DC 0~30V Red Digital Mini Voltmeter Gauge Tester Mount Car Motorcycle Battery Monitor Volt Voltage Meter 0.36\" Red LED Display Panel"
brand: "bayite"
price: "582971₫"
currency: VND
in_stock: true
reviews_count: 11
category: "Bayite"
url: https://www.desertcart.vn/products/28274208-bayite-pack-of-5-three-wire-calibratable-dc-0-30v
store_origin: VN
region: Vietnam
---

# 0.01V accuracy 0~30V range Calibratable screw bayite Pack of 5 Three-Wire Calibratable DC 0~30V Red Digital Mini Voltmeter Gauge Tester Mount Car Motorcycle Battery Monitor Volt Voltage Meter 0.36" Red LED Display Panel

**Brand:** bayite
**Price:** 582971₫
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay powered, stay ahead — never miss a volt!

## Quick Answers

- **What is this?** bayite Pack of 5 Three-Wire Calibratable DC 0~30V Red Digital Mini Voltmeter Gauge Tester Mount Car Motorcycle Battery Monitor Volt Voltage Meter 0.36" Red LED Display Panel by bayite
- **How much does it cost?** 582971₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/28274208-bayite-pack-of-5-three-wire-calibratable-dc-0-30v)

## Best For

- bayite enthusiasts

## Why This Product

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

## Key Features

- • **Durable & Safe:** Reverse polarity protection guards your device from accidental wiring errors
- • **Custom Calibration:** Easily fine-tune readings with the built-in calibration screw for perfect accuracy
- • **Wide Voltage Range:** Measures from 0.00 to 30V, covering everything from motorcycles to cars
- • **Compact & Bright Display:** 0.36" red LED panel ensures clear, quick voltage checks even in low light
- • **Precision Voltage Monitoring:** Ultra-accurate 0.01V resolution for critical battery health insights

## Overview

The bayite Pack of 5 Three-Wire Calibratable Digital Voltmeters offers professional-grade voltage monitoring from 0 to 30V with 0.01V precision. Featuring a bright 0.36" red LED display and a handy calibration screw, these compact meters are perfect for automotive and motorcycle battery diagnostics. Reverse polarity protection ensures durability, making them a reliable tool for any voltage-sensitive project.

## Description

Buy bayite Pack of 5 Three-Wire Calibratable DC 0~30V Red Digital Mini Voltmeter Gauge Tester Mount Car Motorcycle Battery Monitor Volt Voltage Meter 0.36" Red LED Display Panel: Voltmeter - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great size, excellent function. - Great size, excellent function.
Review: Easy to use and accurate little voltmeter. - Great little voltmeter! Mounting is easy, I 3D printed a shroud to help with this and added some smoky Lexan to cut the brightness down a bit and improve the contrast. Calibration is simple and accurate, I set the 10ths digit to roll over to the next value with the input voltage reaches 0.05V (i.e. an input voltage of 12.44 reads as 12.4 on the LED, and 12.45 reads as 12.5). The accuracy is very good over the input range and the 10ths digit does not jump around excessively. Overall this is a very easy to use and acceptable voltmeter for most projects. I used it here in a mobile amateur radio setup to measure power supply/battery voltage and boosted voltage. I do wish the 3 wires were accessible so you could join the white and red (voltage for the LCD driver and voltage to measure) but they solder to the surface of the PCB under the LED, not a big deal though.

## Features

- This is Three-Wire Voltmeter. Three-Wire connection enable the Voltage Test Rang from 0.00 to 30V. (Two-wire meters cannot measure the voltage that is below 3V);
- Measurement Accuracy: 0.01(0.01 - 9.99V) / 0.1(10.0 - 30.0V); And the meter is CALIBRATABLE: The screw on the back is used to Calibrate the meter.
- BRIGHT & NICE Reading: Display: Three 0.36" digital LED Tube; Display Color: Red;
- Reverse Polarity Protection: The meter won't burn out if reverse polarity is applied, but the screen will display nothing
- NOTE: When measured voltage is larger than 30V, the voltmeter will be damaged.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00YALUXH0 |
| Best Sellers Rank | #38,119 in Automotive ( See Top 100 in Automotive ) #19 in Automotive Voltmeter Gauges |
| Brand | bayite |
| Color | red |
| Date First Available | May 26, 2015 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.16 ounces |
| Item dimensions L x W x H | 0.9 x 0.55 x 0.39 inches |
| Item model number | 3B001x5 |
| Lower Temperature Rating | 14 Degrees Fahrenheit |
| Manufacturer | bayite |
| Measurement Type | Voltmeter |
| Min. Operating Voltage | 3 Volts (DC) |
| Product Dimensions | 0.9 x 0.55 x 0.39 inches |
| Style | Digital |
| UPC | 711463670098 |
| Upper Temperature Rating | 149 Degrees Fahrenheit |

## Product Details

- **Brand:** bayite
- **Color:** red
- **Item Weight:** 0.01 Pounds
- **Item dimensions L x W x H:** 0.9 x 0.55 x 0.39 inches
- **Style:** Digital

## Images

![bayite Pack of 5 Three-Wire Calibratable DC 0~30V Red Digital Mini Voltmeter Gauge Tester Mount Car Motorcycle Battery Monitor Volt Voltage Meter 0.36" Red LED Display Panel - Image 1](https://m.media-amazon.com/images/I/61iMNnewyhL.jpg)
![bayite Pack of 5 Three-Wire Calibratable DC 0~30V Red Digital Mini Voltmeter Gauge Tester Mount Car Motorcycle Battery Monitor Volt Voltage Meter 0.36" Red LED Display Panel - Image 2](https://m.media-amazon.com/images/I/71+5PiNQOVL.jpg)
![bayite Pack of 5 Three-Wire Calibratable DC 0~30V Red Digital Mini Voltmeter Gauge Tester Mount Car Motorcycle Battery Monitor Volt Voltage Meter 0.36" Red LED Display Panel - Image 3](https://m.media-amazon.com/images/I/710z-uqI8DL.jpg)
![bayite Pack of 5 Three-Wire Calibratable DC 0~30V Red Digital Mini Voltmeter Gauge Tester Mount Car Motorcycle Battery Monitor Volt Voltage Meter 0.36" Red LED Display Panel - Image 4](https://m.media-amazon.com/images/I/61m8VNqDonL.jpg)
![bayite Pack of 5 Three-Wire Calibratable DC 0~30V Red Digital Mini Voltmeter Gauge Tester Mount Car Motorcycle Battery Monitor Volt Voltage Meter 0.36" Red LED Display Panel - Image 5](https://m.media-amazon.com/images/I/61943qv846L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great size, excellent function.
*by R***L on February 8, 2026*

Great size, excellent function.

### ⭐⭐⭐⭐⭐ Easy to use and accurate little voltmeter.
*by T***R on May 19, 2020*

Great little voltmeter! Mounting is easy, I 3D printed a shroud to help with this and added some smoky Lexan to cut the brightness down a bit and improve the contrast. Calibration is simple and accurate, I set the 10ths digit to roll over to the next value with the input voltage reaches 0.05V (i.e. an input voltage of 12.44 reads as 12.4 on the LED, and 12.45 reads as 12.5). The accuracy is very good over the input range and the 10ths digit does not jump around excessively. Overall this is a very easy to use and acceptable voltmeter for most projects. I used it here in a mobile amateur radio setup to measure power supply/battery voltage and boosted voltage. I do wish the 3 wires were accessible so you could join the white and red (voltage for the LCD driver and voltage to measure) but they solder to the surface of the PCB under the LED, not a big deal though.

### ⭐⭐⭐⭐⭐ DVM is cheap and reasonably accurate for my application
*by C***A on August 19, 2024*

I’m using this to monitor the state of charge of a LiFePo4 battery in my camper van, so I need accuracy between 12.9-13.4V. I calibrated the first unit to transition from 13.3 to 13.4 with a precision input crossing 13.35V. I’ll define a sub count as a change in the input of 0.01V. This mini DVM uses a micro with a 12 bit ADC, supporting a resolution below 0.01V, or 1 sub count (divide 30V range by 2^12). The voltage reference for the ADC comes from a cheap LDO regulator with +/-3% accuracy, which is why the calibration screw is needed. The specified variation of this LDO reference voltage suggests at most +\- 2 sub counts of accuracy loss between 50-100 degrees F ambient temperature, which is not bad. The long term drift of this reference is unspecified, and probably the most serious impact on accuracy over time. But again, a yearly recalibration should take care of that. I’ll check back in a year with an update. One last thing I’ll mention is the input (white wire) current. It is not quite zero. My measurement suggests there is a 125kohm resistor attenuator (probably 10:1) between the input and ground. So even if the unit is switched off (red wire opened) expect some current drain into input. For example, 0.1mA with a 12v input. Low enough for me to leave connected to my battery at all times, but about 10 times more current then a typical fluke DVM.

## Frequently Bought Together

- bayite Pack of 5 Three-Wire Calibratable DC 0~30V Red Digital Mini Voltmeter Gauge Tester Mount Car Motorcycle Battery Monitor Volt Voltage Meter 0.36" Red LED Display Panel
- bayite Pack of 5 Three-Wire Calibratable DC 0~30V Blue Digital Mini Voltmeter Gauge Tester Mount Car Motorcycle Battery Monitor Volt Voltage Meter 0.36" Blue LED Display Panel

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-12*