• Predictive Thermometer with Wifi Booster - Cooking Thermometers - - from Combustion Inc
  • Predictive Thermometer with Wifi Booster - Cooking Thermometers - - from Combustion Inc
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Predictive Thermometer with Wifi Booster

Predictive Thermometer with Wifi Booster

New - 2nd Gen - Jan 7 est. ship

WiFi enabled. 900ºF limit – hermetically sealed and sous vide ready.

$152.15
$179.00 $152.15
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Predictive Thermometer with Wifi Booster

For use with Combustion mobile apps

The 2nd-generation wireless Combustion Predictive Thermometer (CPT) uses an array of 8 sensors to give you a complete view of what’s happening inside your food while it cooks. Requires the Combustion App (free) or Display (not included).

Up to 900ºF

Nitrogen-flushed, and hermetically sealed with a brazed ceramic bond, the new CPT has the highest ingress protection possible (IP69K). It’s suitable for vacuum-sealing (hello sous vide!) and can tolerate extreme cooking temps of up to 900ºF (482ºC).

WiFi for unlimited range

Includes WiFi Booster, which connects directly to existing WiFi networks so you can monitor your food from anywhere with internet. Data uploaded over WiFi is available through any connected Combustion App - anywhere in the world from your basement to Bali or the Shetland Isles.

The Booster also relays Bluetooth signals to other Combustion devices or to the Combustion app within range (330ft/100m). 

Extended battery life

The Booster’s onboard battery has enough juice to recharge your CPT fully up to 16 times. When stored in the Booster, a thermometer will stay fully charged and ready-to-go for up to 9 months. 

Stay ready so you don’t have to get ready!

2nd Generation upgrades (NEW)

  • Hermetic brazed seal for IP69K protection - the highest waterproof rating
  • 900ºF ambient temperature limit
  • Recommended for all types of cooking including deep-frying, sous vide, and flame-grilling
  • Watch your cook from anywhere – unlimited connectivity with WiFi Boosters and WiFi Displays

Plus all the scientific magic of the original Predictive Thermometer

  • 8 sensors, evenly spaced for Total Temperature Awareness™
  • SafeCook™ informs you when food reaches US government safety standards – while it’s still tender and delicious 
  • 4 TrueCore™ sensors precisely locate + track the lowest internal temp
  • 3 TrueSurface™ sensors monitor the true cooking temp at the surface of your food 
  • TrueAmbient™ sensor isolates the air temp immediately surrounding your food
  • Physics-based Prediction Engine™ models heat-dynamics and evaporative cooling to accurately predict cook time, even when cooking low and slow

  • Integrated food safety

    The Predictive Thermometer with Wifi Booster now includes SafeCook

    Combustion’s SafeCook™ keeps a running total of the bacterial body count at every step in the cooking process.

    It tells you exactly when your food has met US government food safety guidance.

    These are the same USDA-FSIS/FDA standards used by commercial food preparers. But with SafeCook, the Predictive Thermometer does all the math.

    More about SafeCook 

FAQ

What's in the box?

  • Second Generation Predictive Thermometer
  • WiFi Booster - Range Extender/Cordless Recharger
  • USB-A to USB-C charging cable included
  • Requires USB power source to charge (not included)

Shipping

All orders are shipped in the order received. 

It takes 1-3 business days to process orders and get them on their way. At that point, you'll get a shipping confirmation email. Shipped!

In periods of very high demand, products may be temporarily back ordered while we are waiting for inventory to arrive.

In that case, the estimated ship date will be listed in checkout (for example “ESD: Aug 21, 2023”) - that’s when your order is expected to arrive at our US warehouse for processing.

When it arrives depends on the shipping method, location and (for international orders) customs inspections and other random events. 

Domestic shipping

Prices and shipping options are listed in checkout. (Please don't use the fast delivery options for products that are out of stock or for preorders. It won't get there faster.)

Worldwide shipping

No surprises! We ship to most countries Delivered Duties Paid (DDP). That means everything-taxes, duties, import fees, and shipping fees-are calculated and pre-paid at check-out.

What changed with the 2nd generation Combustion Predictive Thermometer?

A more durable, fully hermetic seal and higher maximum temperature range.

Using high-temperature ceramic-to-metal brazing, we create a true hermetic seal between the ceramic handle and steel tube. Unlike conventional seals or adhesives that can degrade over time, this brazing process creates a permanent metallurgical bond at the molecular level. 

The result is a completely hermetic seal that's tested to IP69k standards – the highest ingress protection rating available.

Key improvements:

  • True hermetic seal - safe for vacuum sealing, sous-vide, and deep-frying
  • Extended temperature range - high-temp region now reaches 900ºF (482ºC), up from 600ºF
  • Enhanced sensor performance - relocated ambient sensor provides faster, more accurate readings
  • More durable construction while maintaining all original smart features.

We also introduced built-in WiFi to the second generation accessories (WiFi Display, WiFi Booster, Giant Grill Gauge).

Does this mean the old ones are obsolete?

Not at all! If you have an original Predictive Thermometer that's working great for you, don't worry!

We'll continue supporting it with new app features and firmware upgrades, just like always. And your 1st gen Combustion Predictive Thermometer (CPT) even works with 2nd generation WiFi accessories. Just add one (WiFi Display, WiFi Booster, or Giant Grill Gauge) to your existing set to take advantage of your home WiFi network and watch your temps remotely from anywhere.

The 1st gen Predictive Thermometer is still fantastic for most cooking setups. While the original design performed well overall, we saw an opportunity to improve the durability of the main seal. Our second-generation design uses high-temperature ceramic-to-metal brazing to create a permanent, hermetic seal between the ceramic handle and steel tube.

The 2nd gen CPT offers enhanced durability, improved ambient temperature sensing through a relocated sensor, and an extended temperature range, now reaching 900ºF in the high-temp region (up from 600ºF).

For most everyday cooking applications, the 1st generation CPT continues to work great.

What about WiFi?

Any Combustion Predictive Thermometer (CPT) can be used with any of our new WiFi accessories (WiFi Display, WiFi Booster, Giant Grill Gauge) to connect to WiFi and send live cook data to anywhere in the world with internet access. Be sure to get the newest firmware to use this feature!

WiFi's higher transmission power (more than 10x that of Bluetooth) allows for excellent coverage throughout your home and, through your network, anywhere with internet access. This is especially useful when cooking from your basement or other locations where lower-power signals might struggle.

Why isn't WiFi in the thermometer itself?

It comes down to optimizing battery life while maintaining performance. WiFi draws significantly more power than Bluetooth, and the thermometer's battery must be small enough to fit near the probe tip. By using Bluetooth's energy-efficient design, we can achieve industry-leading battery life (over 92 hours) while still maintaining rapid data updates - every 5 seconds during normal cooking, and up to 5 times per second when it matters most.

Using a separate tool for WiFi connectivity means the thermometer can dedicate its power to what matters: collecting data, calculating predictions, running algorithms, SafeCook™, and all the other features that make the CPT special. 

This design choice helps us maintain the longest functional battery life of any wireless thermometer, even while processing more data than our competitors.

Anything else I should know?

Oh my yes. 

The Combustion Predictive Thermometer was designed to be a tool for professional chefs, but to also be easy to use by cooks at any skill level. 

Read as much as you can. The deeper you dive, the more I think you’ll appreciate the genius (and occasional madness) of what we’re doing. 

We’ve been very fortunate to have found a community of like-minded cooks who appreciate the extra insight and deep data our tools can provide. And we’re regularly surprised by the new and unusual uses that people are finding for the Combustion Predictive Thermometer (Beehives? Raw milk?). 

If you like cooking and science and the science of cooking, welcome. You’re in the right place. 

If you’re not sure about the CPT yet, do your research. Watch Chris’ videos - they’re full of surprising cooking science and practical techniques. Read the posts on our subreddit - there’s a lot of really specific discussion about how to use the thermometer and the people there are always pushing the limits. 

There’s also a ton of info on our help center, searchable by topic and keyword. 

Or you could always just jump in - we stand behind all our products with a 30-day money back guarantee. 

If the Combustion Predictive Thermometer doesn’t improve your cooking outcomes, or your process, or if it’s just not your bag for whatever reason, return it for a full refund of the purchase price.

I have a different question that is not answered here?

The first thing to try is our help center/FAQ. You can search by topic and learn more than you ever needed to know about the Predictive Thermometer and other Combustion tools. 

If you have no luck there, our subreddit is a good bet.

If that’s not your jam, please write us (there's a link in the footer). We’re always happy to help.

Specs and tech

Temperature Accuracy + Limits

Upper Half Temperature Limits -5 to 900ºF (-20 to 482ºC)
Lower Half Temperature Limits -5 to 220ºF (-20 to 105ºC)
Ambient Sensor - Peak Temp Limit 900ºF (482ºC)
Upper Sensors - Continuous Temp 750ºF (399ºC)
Accuracy T1-4 (Lower) ±0.4°F (0.2°C) from 14-149°F (-10 to 65°C)
±0.5°F (0.3°C) from 149-185°F (65 to 85°C)
Accuracy T5-7 (Upper) ±0.9°F (0.5°C) from 14-221ºF (-10 to 105ºC)
Accuracy T8 (Ambient) ±2.7ºF (1.5°C) from 14-212ºF (-10 to 100°C)
±4.5ºF (2.5°C) from 212-572ºF (100 to 300°C)
±8.1ºF (4.5°C) from 572-900ºF (300 to 482°C)
Response Time Full reading in 4-5 seconds
Data logging 5 second intervals
Upper sensors 4 high temperature thermistors
Lower sensors 4 zero-calibration IC sensors

Physical Dimensions

Product Size (Min Insertion Depth) 1.97 in / 50 mm
Product Size (Probe Length) 3.8 in / 97 mm
Product Size (Diameter) 0.19 in / 4.8 mm
Water Resistance IP69K
Hermetic Seal Hermetic ceramic-to-metal brazed joint
Charging cable USB C-to-A
Charger voltage limit + draw 5V limit, 3.4V draw
Charger Cradle or Booster

Wireless

WiFi - Mode 802.11 b/g/n (2.4 GHz) - requires WiFi accessory
WiFi - Options WiFi Display
WiFi Booster
Giant Grill Gauge
BLE Range 330ft+ (100m+)
BLE Range - Obstructed 10-100ft (3-30m)
BLE Range - with Repeater 330ft (100m) added per hop
MeatNet enabled Yes
BLE protocol BLE 5.4 Long Range PHY Coded Support

Power

Battery Life - standby 40 days standby (up to)
Battery life - Cook mode 90+ hr (at 5 sec refresh rate)
Battery Life - Instant read 24 hr (up to)
Battery - time to charge 25 min for full charge
Battery - Quick charge 5 min = 24 hr cook time (at 5 sec refresh rate)
Battery - type LTO (Lithium Titanate Oxide)
Battery - durability 90% capacity retention after 1000 recharging cycles

Other

Apps iOS, Android, iPadOS, macOS (M1 or newer)
Communication protocol Combustion BLE Probe Spec
Open Source - Software iOS and Android libraries, example apps, supporting documentation open source under MIT License
Open Source - Permissions use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
Certifications Bluetooth, FCC, ROHS, REACH, IC-ID + ICED, CE-Red, CE-EMC, SRRC, Food Contact Declaration

WiFi Booster

WiFi 802.11 b/g/n (2.4 GHz)
Battery Life - connected/WiFi 54 hr
Recharge capacity - CPT 16 full CPT recharges
Battery Life - standby with CPT 285 days (9.5 months)
Thermometer Boosting 4 thermometers simultaneously
Range added - unobstructed BLE 330ft+ (100m+) 

Reviews