How long is the probe? Can it easily reach in the center of a big roast or a loaf of bread?

From the description on the Amazon website page....the probe is 2.8" long. I find that more than adequate to reach the center of most any cut of meat I cook.

I want to brew green teas (160-200F water typically). Can anyone verify how quickly and accurately it works in this range? Thanks!

these thermometers will typically work up to about 400 F, so if you want to check the temperature of cooking oil for frying, you can do that. Thermapens do, double check the specs on this.

can you calibrate this thermometer

No, and ours is reading +110° after a couple of years.

It looks like a pocketknife. Does the probe go in and out like a pocketknife?

Yes just folds up like a pocket knife.

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Javelin® Ultra-Fast 3-Second Digital Instant Read Meat Thermometer for Grill and Cooking, 2.75" Probe, Compact Foldable Design, Large Display, IP65 Water Resistant, NSF Certified – Sesame

Javelin® Ultra-Fast 3-Second Digital Instant Read Meat Thermometer for Grill and Cooking, 2.75" Probe, Compact Foldable Design, Large Display, IP65 Water Resistant, NSF Certified – Sesame

Product ID: 9615429

Details

Age Range (Description)
Adult
Brand
Lavatools
Color
Sesame
Display Type
Digital
Included Components
Battery
Outer Material
Stainless

💧IP65 water resistant

🔋4000+ hours battery life

⏱️3-second ultra-fast readout

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Details

Age Range (Description)
Adult
Brand
Lavatools
Color
Sesame

Description

🔥 Master your grill game in 3 seconds flat!

BUILT FOR REAL LIFE - IP65 splash-proof design with foldable compactness and integrated magnet for effortless storage
SPEED THAT KEEPS UP - Instant 3-4 second temperature readings to never miss the perfect moment
ENDURANCE FOR EVERY GRILL - 4000+ hours battery life with auto-sleep mode means it’s ready whenever you are
PRECISION THAT PROS TRUST - ±0.5°F accuracy calibrated in labs for flawless cooking every time
CHEF APPROVED MEDIA LOVED - Voted #1 by Business Insider and featured in top culinary publications—join the elite cooks

The Lavatools Javelin is a professional-grade digital meat thermometer delivering ultra-fast 3-second readings with ±0.5°F accuracy. Its compact, foldable design features a large, easy-to-read display, IP65 water resistance, and a built-in magnet for convenient storage. With over 4000 hours of battery life and NSF certification, it’s the trusted choice of chefs and home cooks alike for precise, reliable temperature monitoring.

Specifications

ASIN	B00OXHQL3Q
Additional Features	Fast Reading System, High Accuracy, Integrated Storage Magnet, Large Display, Splash Proof
Age Range (Description)	Adult
Age Range Description	Adult
Battery Life	4000 Hours
Best Sellers Rank	#2,824 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #20 in Meat Thermometers & Timers
Brand	Lavatools
Brand Name	Lavatools
Color	Sesame
Customer Reviews	4.7 out of 5 stars 20,920 Reviews
Display Type	Digital
Global Trade Identification Number	00849256000040
Immersion Depth	2.75 Inches
Included Components	Battery
Indoor Outdoor Usage	Indoor, Outdoor
Item Length	4.5 Inches
Item Weight	50 Grams
Manufacturer	Lavatools
Model	PT12
Model Name	Javelin
Number of Batteries	1 Lithium Metal batteries required. (included)
Outer Material	Stainless Steel
Part Number	849256000040
Power Source	Battery Powered
Product Care Instructions	Do Not Expose to Direct Flame, Do Not Leave In Dishwasher, Do Not Leave In Oven, Do Not Soak, Hand Wash Only, Wipe Clean
Resolution	0.1
Response Time	3 seconds
Reusability	Reusable
Special Feature	Fast Reading System, High Accuracy, Integrated Storage Magnet, Large Display, Splash Proof
Specification Met	NSF
Style Name	Contemporary
UPC	849256000040
Unit Count	1.0 Count
Upper Temperature Range	482 Degrees Fahrenheit
Warranty Description	3-year limited warranty. Visit manufacturer website.

Reviews

A**R

25.12.2025

T**Y

24.01.2026

J**N

10.02.2026

T**Y

29.11.2025

A**K

29.12.2025

S**S

28.01.2026

M**L

3.06.2016

M**N

13.12.2025

A**R

16.08.2023

K**P

27.01.2026

M**E

10.01.2023

B**D

18.12.2025

L**.

21.03.2025

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