| Manufacturer | reflex wireless |
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| Parcel Dimensions | 9 x 7 x 2.5 cm; 65 g |
| ASIN | B0FJY1L8ZR |
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Reflex Wireless Smart Ketone Breath Meter | 80% Cheaper Than Ketone Test Strips | Ketone Analyzer | Ketone Meter Monitor | Real-Time Fat Burning Rate | Test Strips Replacement | Free Mobile Apps
Purchase options and add-ons
- Wireless & Non-Invasive Ketone Testing - Track your ketone levels anytime, anywhere—no painful finger pricks or messy test strips required. Just exhale for fast, accurate readings.
- Smart App Integration Connects to a free app wirelessly to get real-time ketone tracking, history analysis, and progress monitoring for keto, low-carb, and fasting lifestyles.
- High-Precision Acetone Sensor - Equipped with advanced semiconductor technology to provide reliable breath acetone measurements that reflect your fat-burning state.
- Instant Plug-and-Play Operation - No complicated setup—simply long press the power button, exhale, and view your ketone level instantly on the app or screen.
- Lightweight & Travel-Friendly - Compact and Light, this portable ketone monitor is perfect for home, gym, or travel—keep your diet on track wherever you go.
- Cost-Effective & Eco-Friendly - Save money over time with a reusable breath sensor—no disposable blood ketone strips or lancets required.
- Ideal for Keto & Fasting Users - Perfect for ketogenic diets, intermittent fasting, low-carb nutrition, or anyone aiming to monitor fat metabolism and weight loss progress.
- Easy to Use for Beginners & Experts - Whether you're new to keto or an experienced tracker, the intuitive design and app-guided interface make testing simple.
- Maintenance-Free Design - Built for long-term use without consumables. Just need to replace the 2xAAA batteries periodically and you're ready to go—no recalibration needed.
- Accurate & Convenient Results - Get instant insights into your metabolic state—stay in ketosis, manage your goals, and adjust your plan with confidence.
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Product Description
Measure. Adjust. Burn More
Discover how the Ketone Breath Meter app, together with compatible devices like the KT-37B or USB-Pro, helps you track ketosis and achieve your fat-burning goals with ease.
When your body runs low on carbs, it switches to burning fat as fuel. This produces ketones, which indicate whether you are in fat-burning mode.
Tracking your ketone levels helps you:
- Confirm when your body is in ketosis
- Maximize fat-burning efficiency
- Fine-tune your diet and lifestyle for better results
- Stay motivated with real-time progress
Unlike traditional methods, breath meters are:
- Non-invasive – No needles or strips required
- Unlimited use – Test as often as you like with no extra cost
- Fast & Convenient – Get results in seconds, anytime, anywhere
Connecting the Ketone Breath Meter app with devices like the KT-37B or USB-Pro gives you powerful insight into your metabolism. Track ketone levels, optimize your fat-burning mode, and stay consistent on your ketogenic or low-carb lifestyle.
Breath Meter = Smart Investment
Save More with Every Test
Tracking ketone levels doesn’t have to be expensive. With a Ketone Breath Meter, you can monitor your fat-burning state at a fraction of the cost compared to traditional ketone test strips.
The Cost of Test Strips Adds Up
- Average ketone test strip: $0.05 USD per test
- Requires continuous repurchasing
- Wasteful and inconvenient
Over time, the cost of strips can far exceed the price of the device itself.
Breath Meter = Smart Investment
- Minimum test count: 3,500 tests per device
- Equivalent cost: only $0.01 USD per test
- No strips, no refills, no hidden costs
With a one-time purchase, you gain the freedom to test as often as you want—without worrying about the ongoing expense.
Why Choose Breath Testing?
✔ Affordable – Save up to 80% compared to strips ✔ Minimum-Waste – No disposable waste ✔ Convenient – Unlimited testing anytime, anywhere
Take Control of Your Journey
Switch to a Ketone Breath Meter and enjoy accurate results, cost savings, and total convenience. Every breath test brings you closer to your optimal fat-burning mode—without burning through your wallet.
- What is the KT-68B Wireless Ketone Breath Meter? The KT-68B is a portable, battery-powered device that measures your breath acetone levels to estimate ketone production in your body.
- How does the KT-68B measure ketones? It uses semiconductor sensor technology to detect acetone in your breath, which correlates with fat metabolism and ketosis.
- Is the KT-68B compatible with my smartphone? Yes, it works with both Android and iOS devices wirelessly.
- Do I need to install an app to use it? Yes, download the free "Ketone Breath Meter" app from the Apple App Store or Google Play Store.
- Can I download the app before buying the KT-68B? Yes, you can try the app before purchase to see its features and interface.
- What type of batteries does it use? The KT-68B is powered by two AAA batteries (not included).
- Is the device rechargeable via USB? No, it is powered only by AAA batteries and does not require charging.
- Do I need to buy test strips? No, the KT-68B does not use any test strips—it's a non-invasive breath test.
- How accurate are the results? The device provides reliable readings based on breath acetone levels, though accuracy may vary with user technique and calibration.
- How long does it take to get a reading? Typically, results appear on the app within 10–20 seconds after exhaling into the device.
- How do I use the KT-68B? Turn it on, connect to your smartphone, open the app, and exhale into the sensor after a warm-up period.
- When is the best time to measure ketones? Measure at the same time each day, preferably in the morning or several hours after a meal for consistency.
- Do I need to fast before testing? It’s recommended to avoid eating, drinking, or brushing teeth 30 minutes before testing for best results.
- What do the ketone levels mean? Higher breath acetone levels generally indicate deeper states of ketosis and fat burning.
- Is this suitable for tracking a ketogenic diet? Yes, it’s ideal for keto, low-carb, or fasting lifestyles to monitor fat-burning progress.
- Can I use the KT-68B without the app? No, you need the app to see and log your ketone readings.
- Does the app track historical data? Yes, the app stores your past measurements for tracking trends over time.
- Is the KT-68B FDA-approved? This product is designed for wellness and personal monitoring, not for medical diagnosis.
- Can multiple users use the same device? Yes, but each user should use their own profile within the app for accurate tracking.
- Is the sensor replaceable? The sensor is built-in and does not require replacement, but device calibration is recommended over time.
- How often should I test my ketone levels? Most users test once or twice daily, depending on dietary goals.
- Can I use this while intermittent fasting? Absolutely. It’s an excellent tool to monitor ketosis during fasting.
- Is the KT-68B travel-friendly? Yes, it's compact, lightweight, and battery-powered—perfect for travel.
- How do I clean the KT-68B? Wipe the mouthpiece area gently with a soft cloth. Avoid using water or solvents.
- What should I do if I get inconsistent readings? Ensure proper warm-up, do not eat or drink before testing, and follow the user guide for best practices.
- How long do the AAA batteries last? Battery life depends on usage but typically lasts several weeks of daily use.
- Where can I buy the KT-68B replacement parts or accessories? Replacement parts and accessories are available through authorized retailers or the official website.
- Why does my Ketone Breath Meter say “No Blow Detected”? When the app prompts you, blow into the device for 2–3 seconds. Blowing too long can overload the sensor and cause this error.
- Can I use the device to track the effects of ketone-boosting foods or drinks? Yes. The Ketone Breath Meter allows you to monitor how your ketone levels change after consuming ketone-enhancing foods or beverages.
Product information
Technical Details
Additional Information
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Product details
- Parcel Dimensions : 9 x 7 x 2.5 cm; 65 g
- Date First Available : Aug. 17 2025
- Manufacturer : reflex wireless
- ASIN : B0FJY1L8ZR
- 鶹 Rank: #68,047 in Health & Personal Care (See Top 100 in Health & Personal Care)
- #9 in Ketone Breath Meters






