---
product_id: 287787170
title: "Ketone Breath Meter, Professional Portable Ketone Breath Tester, Digital Ketone Breathalyzer with 10 Mouthpieces (Color2)"
brand: "bestmaster"
price: "$89.59"
currency: USD
in_stock: true
reviews_count: 8
category: "Best Master"
url: https://www.desertcart.us/products/287787170-ketone-breath-meter-professional-portable-ketone-breath-tester-digital-ketone
store_origin: US
region: United States of America
---

# Ultra-portable, pocket-sized Professional-grade accuracy 3-color LED traffic light indicator Ketone Breath Meter, Professional Portable Ketone Breath Tester, Digital Ketone Breathalyzer with 10 Mouthpieces (Color2)

**Brand:** bestmaster
**Price:** $89.59
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay in the fat-burning zone with every breath! 🫁

## Quick Answers

- **What is this?** Ketone Breath Meter, Professional Portable Ketone Breath Tester, Digital Ketone Breathalyzer with 10 Mouthpieces (Color2) by bestmaster
- **How much does it cost?** $89.59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/287787170-ketone-breath-meter-professional-portable-ketone-breath-tester-digital-ketone)

## Best For

- bestmaster enthusiasts

## Why This Product

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

## Key Features

- • **Instant Ketosis Status:** Intuitive 3-LED traffic light system gives you quick, clear feedback on your ketosis state.
- • **Peace of Mind Warranty:** Backed by a 1-year warranty and 30-day money-back guarantee for risk-free ketosis tracking.
- • **Test Anywhere, Anytime:** Compact and lightweight design fits effortlessly in your purse or pocket for on-the-go monitoring.
- • **Precision You Can Trust:** Professional-grade ketone detection beats urine strips for accuracy and convenience.
- • **Effortless One-Button Operation:** Simple 3-second power-up and 6-second breath test—no complicated setup or finger pricks.

## Overview

The BestMaster Ketone Breath Meter offers professional-grade accuracy in a sleek, ultra-portable design. It uses breath acetone levels to provide real-time ketosis readings with a simple one-button operation and a clear 3-color LED indicator. Perfect for keto enthusiasts seeking a convenient, non-invasive alternative to blood or urine tests, it includes 10 replaceable mouthpieces and is backed by a 1-year warranty.

## Description

How To Know If You Are in Ketosis? If your goal is to get into ketosis as fast as possible, you have to test your ketone levels. Why? Testing helps you recognize what foods or habits kick you out of ketosis. How To Test Your Ketone? Using our Ketone meter for breath testing, it is a type of meter specifically calibrated for measuring the level of ketosis for those on a ketogenic diet 1.Hold the power button for 3 seconds until the device turns on 2.Wait 20 seconds countdown for device warming-up 3.Blow with the mouthpiece for 6 seconds, the testing result will be displayed on the screen: *Readings of 0.0 signify the person is still not in ketosis state *Readings of 0.1-0.5 signify the person is in a light state of ketosis (the process of fats being used by the body as the main source of energy began ) *Readings of 0.5-3.0 signify the person is in full state of ketosis, which is the optimal ketone zone (the process of fats being used by the body as the main source of energy) *Readings over 3.0 signify the person is in starvation ketosis* Readings over 5.0 signify the person is in too much ketosis and need medical care* Readings over 7.0 signify the person is in ketoacidosis Package Contains: 1x portable ketone meter 10x replaceable mouthpieces 1x carrying string 1x user manual 2 * AA Batteries are not included

Review: Very useful device and working without issues. - The product I received showed in ppm. max limit is 99 ppm. I initially doubted this product accuracy. It always showed 99 ppm. But it is actually correct. I was in deep ketosis. Blood meter showed 5-7. Then I tested with another person with another person who is not on keto. It showed 16. Then I had some cheating day with carb intake and this device showed various values when fat burning lowered gradually from 99 to 80,70,60,50, 40,30,25. They all correlated with Blood meter readings. 6,5,3,2.9,2.3,1.7,1.3, .7, .6. And gradually as my fat burning increased next day values went up. Note, I can't vouch for how accurate it is. As breath meters are not extremely accurate. Even blood meters to. That is the nature of home testing and type of testing. As I am a beginner keto diet person, I wanted to get some idea and used all three 3 devices (blood meter -keto mojo, breath meter - this device, and urine test strips). Now I am pretty comfortable how these numbers work. I am planning to use this device daily or frequently and strips occasionally (to see the excess), blood meter - will reduce usage. Note that these three test devices measure different things and indicate different things Breath meter -- acetone levels in your breath -- Indicate kind of fat burning rate Blood meter -- measure BHB -- Amount of ketones in blood available to use. Urine strips -- measure acetoacetate in urine. --- Indicate excess ketones (that are not being used body). So, if your goal is just to see whether you are ketosis or not. Any device will work. But a long-term ketosis person with well adopted to ketones, urine strips may show nothing because no excess ketones. So, for me this device is giving flexibility and convenience to test any time and to check on I am off ketosis. So, full 5 stars.
Review: It worked at first, non functional within 9 months. - Poor quality. Worked fine for 8 months, then it started giving readings of zero first try, accurate reading second try. I changed the battery and it made no differe. Now, 9 months after purchase, it only gives reading of zero. It is completely broken. Very disappointed.

## Features

- PROFESSIONAL GRADE ACCURACY:Ketone Breath Testing is a far more accurate method than urine strips testing, also more convenient for testing, you only need to breathe with the digital ketone breathalyzer
- ULTRA-PORTABLE:Breath Ketone Meter save you from finger pricks, and the device can be used several thousands times repeatedly, comparatively speaking, you can save much than testing strips.making it easy to take with you anywhere you go. and easily fits in a purse or pocket. Test yourself and friends, or a family member. the Trace really is perfect for anyone looking for a quick, easy and reliable way to test their Ketosis
- AUTOMATIC TRAFFIC LIGHT INDICATOR:Portable Ketone breath tester designed to carry around anywhere in your pocket, and make sure you are in ketosis all the time; the ketone breath meter with 3 LED indications: Green Light (Ketosis Reading Successfully), Amber Light (Low Battery), Red Light (Ketosis Reading Unsuccessfully)
- DOCTOR RECOMMENDED:The ketone breath monitor is easy to use, 1-button operation to get the ketone readings: Reading of 0.0 signify you are still not in ketosis state, while the readings between 0.5 and 3.0, signify you are in full state of ketosis, which is the optimal ketone zone.Meets American Thoracic Society Accuracy Standards.Powered by 2*AA batteries( not included but commonly available)
- ONE YEAR WARRANTY:Ketone breathalyzer is guaranteed with 12 months. If you are not satisfied for any reason, we offer money back for 30 days after purchase, or we will repair or replace the defective product at no charge

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07R7KN3SY |
| Additional Features | Accurate |
| Best Sellers Rank | #303,694 in Health & Household ( See Top 100 in Health & Household ) #14 in Ketone Breath Meters |
| Brand | BestMaster |
| Brand Name | BestMaster |
| Customer Reviews | 3.7 out of 5 stars 251 Reviews |
| Diagnostic Test Sample Type | Saliva |
| Item Weight | 0.2 Pounds |
| Manufacturer | BestMaster |
| Number of Items | 1 |
| Number of Pieces | 10 |
| Special Feature | Accurate |
| Specific Uses For Product | Blood Glucose Test |
| Test Type | ["to"] |
| Test type | ["to"] |
| UPC | 703327024192 703327024291 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** BestMaster
- **Number of Pieces:** 10
- **Special Feature:** Accurate
- **Test type:** ["to"]
- **Specific Uses For Product:** Blood Glucose Test

## Images

![Ketone Breath Meter, Professional Portable Ketone Breath Tester, Digital Ketone Breathalyzer with 10 Mouthpieces (Color2) - Image 1](https://m.media-amazon.com/images/I/51RD7Wd9nyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very useful device and working without issues.
*by P***N on August 11, 2025*

The product I received showed in ppm. max limit is 99 ppm. I initially doubted this product accuracy. It always showed 99 ppm. But it is actually correct. I was in deep ketosis. Blood meter showed 5-7. Then I tested with another person with another person who is not on keto. It showed 16. Then I had some cheating day with carb intake and this device showed various values when fat burning lowered gradually from 99 to 80,70,60,50, 40,30,25. They all correlated with Blood meter readings. 6,5,3,2.9,2.3,1.7,1.3, .7, .6. And gradually as my fat burning increased next day values went up. Note, I can't vouch for how accurate it is. As breath meters are not extremely accurate. Even blood meters to. That is the nature of home testing and type of testing. As I am a beginner keto diet person, I wanted to get some idea and used all three 3 devices (blood meter -keto mojo, breath meter - this device, and urine test strips). Now I am pretty comfortable how these numbers work. I am planning to use this device daily or frequently and strips occasionally (to see the excess), blood meter - will reduce usage. Note that these three test devices measure different things and indicate different things Breath meter -- acetone levels in your breath -- Indicate kind of fat burning rate Blood meter -- measure BHB -- Amount of ketones in blood available to use. Urine strips -- measure acetoacetate in urine. --- Indicate excess ketones (that are not being used body). So, if your goal is just to see whether you are ketosis or not. Any device will work. But a long-term ketosis person with well adopted to ketones, urine strips may show nothing because no excess ketones. So, for me this device is giving flexibility and convenience to test any time and to check on I am off ketosis. So, full 5 stars.

### ⭐ It worked at first, non functional within 9 months.
*by C***R on March 24, 2020*

Poor quality. Worked fine for 8 months, then it started giving readings of zero first try, accurate reading second try. I changed the battery and it made no differe. Now, 9 months after purchase, it only gives reading of zero. It is completely broken. Very disappointed.

### ⭐⭐⭐⭐ It Seems to be Pretty Accurate!
*by W***E on May 14, 2024*

I think this is a very good value for the money. It does have one quirk, though. It should be "zeroed out" before each use. Simply turn it on and let it cycle without blowing through it. If it doesn't read zero, then try it again until it does. At that point, it's ready to use. I was having an issue where it would read very high a few times, so I clear it out before each use now. I have tried it with other family members to make sure that the results are consistent. With all three of us, it has been. Also, if you've been doing keto for a while, don't try to index the results with urine test strips as they measure a different chemical than the breathalyzer. If fact, the urine test strips are good for a while just at the beginning of your diet. This type of machine is the best way to test.

## Frequently Bought Together

- Ketone Breath Meter, Professional Portable Ketone Breath Tester, Digital Ketone Breathalyzer with 10 Mouthpieces (Color2)
- Perfect Keto Exogenous Ketones Powder, BHB Salts Supplement for Ketosis & Fasting, Plus Electrolytes for Hydration, Caffeine Free Energy, Keto Diet, Focus & Workout Support, Vanilla, 6.7 oz

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-06*