The ThermoPro TP20 was Serious Eats' budget pick out of 20 wireless thermometers, chosen for accuracy, quick reads and a 500-foot radio link that does not depend on a phone. Two probes cover meat and ambient grill temperature, the receiver is backlit and rubber-sleeved, and the preset menu covers the usual meats and doneness levels. There is no app and no Bluetooth, the probes are not labelled, and the display cycles between them instead of showing both at once.
Full review
Accuracy checked in boiling water
Serious Eats checked the TP20 in boiling water and recorded 211°F, consistent with the quoted ±1.8°F tolerance and close enough that nothing in ordinary cooking turns on the difference. Reads land in five to seven seconds, slower than a dedicated instant-read but entirely adequate for a thermometer whose main job is sitting in a roast for hours rather than being poked into a steak. The quoted span runs from 14°F to 572°F, which covers a fridge check at one end and a hot grill grate at the other. GrillingCo scored it 4.6 out of 5, and accuracy is the reason both reviews land where they do.
Radio frequency instead of Bluetooth
The TP20 talks to its receiver over radio frequency rather than Bluetooth or Wi-Fi, and Serious Eats flagged that as the reason it is less finicky than app-based rivals: no pairing, no phone battery to manage, no dropout because someone carried the handset behind a wall. The quoted range is 500 feet, and while cement walls and dense tree cover cut into that, owners routinely report holding the link across a whole yard and into the house. A lost-connection alarm fires if the link does drop, so a silent disconnect does not quietly turn into an overcooked brisket while nobody is watching the receiver.
Two probes cycling on one display
Both probes report to a single receiver screen, and it cycles between them rather than showing both at once — a real irritation when the point of a dual-probe thermometer is watching meat temperature and pit temperature converge. The probes are not physically labelled either, so which cable is which comes down to memory or a strip of tape. The receiver carries a rubber sleeve for drop protection and a backlight described as a mellow orange, readable in the dark without being harsh, and both units run on AAA cells. Cord keepers for the braided steel cables are included, though the cables still crimp with age.
Eight buttons and a preset menu
The interface asks for a little patience. The receiver has eight buttons and a three-part display grid, and the layout takes some experimentation before the preset system makes sense. Once it does, it is genuinely useful for anyone without USDA temperatures memorised: presets cover beef, chicken, pork and fish with rare through well-done options that set the alarm target automatically, and there are count-up and count-down timers alongside. There is no control lock, which means a target can be knocked off by a stray press from a greasy thumb halfway through a cook.
No app, and that is deliberate
The TP20's limitation and its appeal are the same thing. There is no Bluetooth, no Wi-Fi and no phone app, so temperature graphing, alerts away from the property and sharing a cook across two phones are all off the table; anyone who wants those should look at ThermoPro's own TP-25 or a connected model. What the TP20 gives back is a device with fewer things to break — no account, no firmware update, no pairing ritual before dinner. Serious Eats' budget listing put it at $45, down from $60, which is the price at which that trade reads as obviously sensible.
Strengths
- +Accurate readings within six to seven seconds
- +500-foot wireless range using radio frequency
- +Easy to operate with large, clearly labeled buttons
- +Backlit screen is bright and easy to read at a glance
Watch-outs
- −Probes aren't physically labeled
- −No button/control lock feature
- −Display cycles between the two probes instead of showing both at once
- −Eight-button receiver takes experimentation before the presets make sense
- −No Bluetooth or app, so no alerts once you leave the property
How it compares
The ThermoPro TP20 offers the most affordable option with a 500-foot range and simple operation, but it lacks the advanced features of the ThermoWorks RFX and MEATER Pro. While it matches the ThermoPop 2 in accuracy and read time, it's more expensive and doesn't offer the auto-rotating display or waterproofing of the ThermoWorks models. Compared to the Lavatools Javelin Pro Duo, it's less feature-rich but more straightforward to use without requiring a smartphone app.
Rating sources
“After testing 20 models, we named the ThermoPro TP20 as our favorite budget pick. It's accurate, fast, easy to operate, and, now that it's only $45, we'd say it's well worth grabbing.”
Our 4.6 score is the average of these published ratings. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
