Lavatools Javelin PRO Duo Thermometer Review

Best Instant Read Thermometer
UPDATED May. 2021
Manufacturer: Lavatools
Model: Javelin PRO Duo
Table Of Contents+

Lavatools Javelin PRO Duo is an instant-read meat thermometer characterized by great accuracy, speed, versatility, and durability. It comes with an impressive feature set, including but not limited to intelligent stabilization, auto sleep, motion wake, and a backlit ambidextrous display with a 360° viewing angle.

Other interesting characteristics of this advanced meat thermometer include its antimicrobial coating, splash-resistance, and durable battery. Discover all the key facts about this reliable meat thermometer in this in-depth Lavatools Javelin PRO Duo review.

Lavatools Javelin PRO Duo
  • Lavatools Javelin PRO Duo
  • Javelin PRO Duo in red color
  • Javelin PRO Duo size
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Pros & Cons

  • Accurate within ±0.9°F
  • Response time of 2-3 seconds
  • Temperature range of 40°F – 482°F
  • 2" backlit antifog display with a 360° viewing angle
  • Auto shut-off and motion wake
  • Intelligent stabilization alert
  • Antimicrobial coating
  • Splash-proof
  • Long-lasting battery
  • Above-average price
  • Unimpressive probe length
  • Not suitable for in-oven use or remote temperature monitoring

Lavatools Javelin PRO Duo Ratings

Our Rating 8.6
Ease Of Use

The amount of time and effort required to understand all the functions of the thermometer and use it properly.


The characteristics that enhance the thermometer’s functionality, usability, and reliability.


The meat thermometer’s precision and margin of error.


The amount of time necessary to obtain a full reading and display the temperature.


The meat thermometer’s average lifespan with proper use and maintenance.


The affordability of the meat thermometer in relation to its quality and in comparison with similar meat thermometers.

Our ratings are the result of an objective and independent evaluation of Lavatools Javelin PRO Duo, generating the final rating that reflects the overall quality of the product.

Design & Durability

Compact and attractively designed, Lavatools Javelin PRO Duo measures 6.25 inches in length and.8 inches in width and comes in a vast array of colors, including Chipotle, Indigo, Sesame, Panda, Olive Drab, Orange, Stealth Ink, and Wasabi. It features a foldable 4.5-inch probe made of food-grade stainless steel.

The antifog backlit display measures 2 inches and it automatically rotates, allowing for easy reading no matter how you hold the device and whether you are right-handed, left-handed or ambidextrous. The backlight is motion-activated, so you do not have to take your oven mitt off to turn it on.

The thermometer is highly durable and IP65 splash-resistant. It features a Zeomic antimicrobial coating and it is NSF, CE, and RoHS certified. Furthermore, it is 100% free from BPA, lead, mercury, cadmium, and similar dangerous substances. It comes with an integrated magnet for easy storage.

Javelin PRO Duo design

Javelin PRO Duo has a compact and attractive design while also having some really great features.


The creators of Lavatools Javelin PRO Duo have invested a considerable effort into making this meat thermometer one of the most feature-rich models on the market. Here is an overview of the most prominent characteristics of Lavatools Javelin PRO Duo.

Lavatools Javelin PRO Duo Features

Javelin PRO Duo stainless steel probe is just long enough to penetrate larger meat chunks and bread loaves.

High-Quality Probe

Although not particularly long, the 4.5-inch probe is made of top-quality stainless steel and features a 0.06-inch tapered tip. It easily penetrates meat, leaving a miniature puncture hole. It is long enough to reach the center of larger meat chunks and bread loaves.

Intelligent Stabilization

With the Intelligent Stabilization feature, you can simply press the touchpad to instruct the thermometer to hold the stabilized temperature and provide sound notifications when the temperature is obtained.

Auto Sleep

When not in use, Lavatools Javelin PRO Duo automatically goes to sleep to save battery.

Motion Wake

In order to turn on the thermometer, you just need to pick it up. This handy feature facilitates use when wearing heat-resistant gloves.

Long Battery Life

Not only is Lavatools Javelin PRO Duo designed to conserve battery when idle, but it is created to last for more than 4,000 hours on a single CR2032 button cell battery, allowing for infrequent battery replacements.

State-Of-The-Art Display

Lavatools Javelin PRO Duo’s top-quality, super-twisted nematic display measures 2 inches in diameter, provides incredible clarity, has a 360° global viewing angle with automatic rotation, and boasts the highly useful anti-fog feature. All these characteristics make it one of the best thermometer displays created so far.

Performance & Accuracy

Lavatools Javelin PRO Duo does well in virtually every department and the same is true for its performance and accuracy. Thanks to the ultra-sensitive Japanese sensor, it provides readings within 1°F in 2 to 3 seconds. In boiling water, it takes no more than 3 seconds to obtain a full reading.

Its margin of error is just ±0.9°F, which is about as good as it gets. It measures temperatures between -40°F (-40°C) and 482°F (250°C).

Lavatools Javelin PRO Duo Performance

Lavatools Javelin PRO Duo boasts great accuracy with a margin of error of just ±0.9°F.

In addition to fast and accurate readings and a nice temperature range, the thermometer offers great versatility. You can use it for meat, baked goods, candy, coffee, homebrew, and deep frying. Keep in mind that this is an instant-read thermometer, so you cannot leave it inside the oven, grill or smoker and you should not place the probe directly over fire.


Technical specifications
Response Time2-3 seconds
Accuracy± 0.9°F (± 0.5°C)
Temperature Range-40°F~482°F (-40°C~250°C)
Battery Life4000+ hours
Backlit Display
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