Head-to-head · Best Meat Thermometers

ThermoPop 2 vs ThermoWorks RFX

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

Verdict is reader-supported. As an Amazon Associate we earn from qualifying purchases. Some links on this page are affiliate links — if you click through and buy, we may earn a small commission at no extra cost to you. Our ratings are sourced from independent publications, not sponsors.

The short answer

ThermoWorks RFX comes out ahead by a clear margin (4.7 vs 4.3). The gap is mostly about Serious pitmasters who prioritize range and accuracy over compactness — read the strengths below before deciding.

Ranked #5 in Best Meat Thermometers

ThermoPop 2

4.3

6 sources1 derived$47as of Oct 4

The ThermoPop 2 delivers professional-grade accuracy of ±1°F and rapid 2–3 second response times, earning praise from heygrillhey for its speed comparable to premium instant-read models. Its IP67 waterproof rating allows full submersion for easy cleaning, while sizzleandsear noted the auto-rotating backlit display keeps readings upright regardless of probe angle. However, the fixed non-folding probe design makes the unit bulkier and less packable than folding alternatives, a significant drawback for users seeking compact storage. Additionally, texasbbq.substack highlighted that the screen backlight times out quickly, requiring manual reactivation during long monitoring sessions, which can be frustrating for continuous use.

Strengths

— IP67 waterproof rating allows full submersion and easy cleaning without damage.
— Backlit display auto-rotates in all four directions for readability at any angle.
— NSF certified with NIST calibration, ensuring professional-grade accuracy of ±1°F.

Watch-outs

— Fixed non-folding probe design makes the unit bulkier and less packable than folding alternatives.
— Plastic probe sheath is prone to slipping off or getting lost during use.
— Screen backlight turns off after a short timeout, requiring manual reactivation for continuous monitoring.

$47 · Check Price on Amazon Full review →

Higher ratedRanked #4 in Best Meat Thermometers

ThermoWorks RFX

4.7

6 sources$99as of Oct 4

The ThermoWorks RFX utilizes patent-pending 433 MHz radio frequency to maintain a stable connection through thick grill walls and home barriers, addressing common Bluetooth dropouts. The probe features four internal sensors that identify the true thermal center for precise doneness tracking, while its high heat tolerance up to 1,000°F allows use in searing and pizza ovens. Serious Eats verified accuracy within ±0.9°F against a Thermapen ONE, and Smoking-Meat.com noted the system feels solid compared to other wireless options. However, it requires a central Wi-Fi gateway for operation, limiting portability for camping or tailgating where home internet is unavailable. The charging dock relies on a replaceable AAA battery rather than built-in rechargeable cells, which some users find less convenient. This setup fits serious pitmasters who prioritize range and accuracy over compactness, while casual cooks preferring all-in-one Bluetooth probes should look elsewhere.

Strengths

— Uses patent-pending 433 MHz radio frequency instead of Bluetooth, providing a stable connection that penetrates thick metal grill walls and home barriers.
— Features four internal thermistor sensors to automatically identify the true thermal center for precise doneness tracking.
— Handles extreme external heat up to 1,000°F (538°C), making it suitable for high-heat grilling, searing, and pizza ovens.

Watch-outs

— Requires a central RFX Gateway unit connected via Wi-Fi; it does not connect directly to phones via Bluetooth in its current configuration.
— The charging dock runs on a replaceable AAA battery rather than using built-in rechargeable cells, which some users find less convenient.

$99 · Buy at thermoworks.com Full review →

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

How they stack up

ThermoPop 2

The ThermoPop 2 matches the Thermapen Mk4's IP67 waterproof rating and 2–3 second response time but differs by having a fixed non-folding probe, making it bulkier than folding alternatives like the TempPro TempSwift. It also shares the auto-rotating display feature with the Thermapen One and Mk4, though its ±1°F accuracy is less precise than the Thermapen One's ±0.5°F.

ThermoWorks RFX

The ThermoWorks RFX uses patent-pending 433 MHz radio frequency to penetrate thick grill walls, addressing the Bluetooth dropouts common in other wireless probes, while also reaching extreme heat up to 1,000°F compared to the 572°F limit of instant-read models. Unlike all listed instant-read thermometers which provide immediate manual readings, the RFX requires a central Wi-Fi gateway and separate ambient probe for continuous monitoring.

Specs side-by-side

Spec	ThermoPop 2	ThermoWorks RFX
Response Time	2–3 seconds	—
Accuracy	±1°F	±0.9°F
Water Resistance	IP67	IP69K
Temperature Range	-58°F to 572°F	-58°F to 14°F and 212°F to 122°F
Power Source	—	USB cable

← See the full ranking of best meat thermometers