FDA-cleared Blood Glucose & Ketone Testing Meter
Stop guessing if you're in ketosis. This all-in-one kit gives you fast, accurate blood readings so you know exactly where you stand.
Urine strips lose accuracy over time. Blood testing doesn't. It's the gold standard recommended by keto experts and healthcare professionals because it tells you exactly how deep into ketosis you are—not just whether some ketones showed up. Dial in the foods that work best for your body, track your GKI score, and stay in control. Combining keto with intermittent fasting? Even better—see exactly when you shift into fat-burning, fine-tune your eating window, and confirm you're getting the full benefits of your fasts.
| 1× | Bluetooth-enabled blood meter (TD-4279, works with BKT app) |
| 50× | Ketone test strips |
| 50× | Glucose test strips |
| 110× | Lancets |
| 1× | Lancing device (painless testing) |
| 2× | AAA batteries |
| 1× | Travel case |
Recommended by Keto ExpertsThe TD-4279 is the most recommended dual meter among keto experts and healthcare professionals. Tests both ketone and glucose levels quickly and painlessly—at home or on the go. |
See the Full PictureTest both ketones and glucose. Monitor your GKI score. Catch slip-ups before they snowball. |
Find What Works for YouFigure out which foods keep you in ketosis and which ones quietly kick you out. No guesswork. |
Dial In Your FastingTest around your eating window. See how your body responds to different fast lengths. Find what keeps you locked in. |
Build Your PlaybookStop following generic advice. Build a routine based on your actual data and your actual results. |
We Ship WorldwideDoor to door across the globe. Canada, Europe, Australia, Asia... |
Real People, Real SupportU.S.-based team. Keto experts. Lifetime warranty. If you're not happy, we'll make it right. |
| Communication | Bluetooth (TD-4279D) |
|---|---|
| Power Source | 2 x AAA |
| Memory Capacity | 1000 sets |
| Day Average | 7, 14, 21, 28, 60, 90 days for blood glucose |
| Daily Alarm | 4 daily alarms |
| Dimension | 97 (L) x 62.2 (W) x 28.9 (H) mm |
| Weight | 67.5 g (without battery) |
| Operating Condition | 10°C ~ 40°C, below 85% R.H. |
| Storage Condition | -20 °C ~ +60 °C (Meter); 2°C ~ 32°C (Strip) |
| Enzyme Type | GDH-FAD |
|---|---|
| Sample Size | 1.0 µL |
| Reaction Time | 5 seconds |
| Measurement Range | 10 – 700 mg/dL (0.56 – 38.89 mmol/L) |
| Precision | CV < 5% if > 100 mg/dL; SD < 5 mg/dL if ≤ 100 mg/dL |
| Accuracy | ±15 mg/dL if ≤ 100 mg/dL; ±15% if > 100 mg/dL |
| Package | Vial pack |
| Enzyme Type | HBD |
|---|---|
| Sample Size | 1.0 µL |
| Reaction Time | 10 seconds |
| Measurement Range | 0.1 ~ 8.0 mmol/L |
| Hematocrit Range | 10% – 70% |
| Precision | ≤ 1 mmol/L, SD < 0.1 mM; > 1 mmol/L, CV < 7.5% |
| Accuracy | ≤ 1 mmol/L, SD < 0.1 mM; > 1 mmol/L, CV < 7.5% |
Complete instructions and a how-to video are included with every kit.
Over 1,000,000 glucose and ketone tests performed.
Take control of your metabolic health with precise, lab-accurate readings from the comfort of home.
Stay on track with ketosis. See if your diet, fasting, or workouts are keeping you in the fat-burning zone.
Spot hidden spikes and dips. Understand how meals, stress, and activity affect your blood sugar.
Balance glucose and ketones together for a clearer picture of your health, energy, and progress.
See the progress in your numbers and feel the real payoff in your daily life.
Whether you're managing diabetes, following a keto protocol, or simply optimizing your wellness — real-time metabolic data puts you in control. No guesswork, just clarity.
Start testing
| FEATURES |
Most Popular
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|---|---|---|---|---|
FDA-cleared meter |
✓ | ✓ | ✓ | ✓ |
Glucose test strips |
50 strips | — | 50 strips | 100 strips |
Ketone test strips |
— | 50 strips | 50 strips | 100 strips |
28-Day Keto Diet Book |
— | — | — | ✓ |
Large back-lit display |
✓ | ✓ | ✓ | ✓ |
Clinical accuracy |
✓ | ✓ | ✓ | ✓ |
1,000 result memory |
✓ | ✓ | ✓ | ✓ |
Long battery life |
✓ | ✓ | ✓ | ✓ |
Lancing device + lancets |
✓ | ✓ | ✓ | ✓ |
Compact travel case |
✓ | ✓ | ✓ | ✓ |
Free U.S. Shipping & Returns |
✓ | ✓ | ✓ | ✓ |
Everything you need to know
Intended Use: This Best Ketone Test Ketone and Glucose Meter is intended for the quantitative measurement of glucose in fresh capillary whole blood from the finger, and for the quantitative measurement of β-Ketone (beta-hydroxybutyrate) in fresh capillary whole blood from the finger. The system is intended for in vitro diagnostic use and for single-patient use as an aid to monitoring the effectiveness of a diabetes control program. The system should not be used for the diagnosis of, or screening for, diabetes, nor for use on neonates.