ThermoWorks Launches the RFX Meat Mini, a Shorter Wireless Probe for Small Cuts

ThermoWorks has released the RFX Meat Mini, a shorter version of its RFX Meat wireless probe built for small cuts of meat, poultry and fish. The Mini is available now for $99, the same price as the RFX Meat when that model is not on sale.

The main change is length. The original RFX Meat measures 4.7 inches and has a minimum immersion line of 3.15 inches. The Mini has a maximum immersion line of 2.6 inches and a minimum of 2.36 inches. ThermoWorks lists the Mini at 4.0 inches overall and says it is sized to seat fully in chicken breasts, fish and filets. That is the practical problem the smaller form factor is meant to solve. A probe that cannot be fully inserted into a thin cut has to be angled or left partly exposed, and a reading taken from that position is less useful.

The Mini keeps the four internal sensors of its larger sibling. According to ThermoWorks, it reads the coldest spot in the food using those four sensors and tells the user's phone when it is time to pull the food. Doneness depends on the coldest point reached, so the sensor array lets the device report that point rather than a single spot along the probe. Think of it as checking the middle of a thick sandwich, the slowest part to heat through.

The housing is rated IP69K, a standard for resistance to high-pressure, high-temperature washdown, and the probe is dishwasher safe. It can withstand temperatures up to 1,000 degrees Fahrenheit. These ratings describe tolerance for washing and direct heat, which matters for a device that moves between a grill, a sink and a cutting board.

Battery life is the main trade-off. The Mini lasts up to 48 hours on a charge, while the RFX Meat lasts over 65 hours. The Mini ships with a charging block powered by a AAA battery rated for over 175 charges. ThermoWorks also sells a separate RFX MEAT 10-Probe Charging Block that can charge up to 10 RFX MEAT or RFX MEAT Mini probes at once from a single hub.

The Mini operates on 433MHz radio, a sub-1GHz band (radio below 1 gigahertz), rather than Bluetooth or Wi-Fi. It connects to the RFX Gateway, which is required for operation. The Gateway syncs with a home network and the ThermoWorks app, and it accepts a separate wired ambient probe that monitors the cooking environment alongside the food.

The Mini is priced at $99. ThermoWorks is offering 20 percent off the Mini when it is bought with either the RFX Gateway or the RFX Meat Starter Kit, which includes a Gateway.

The broader context here is the Gateway. A probe that cannot talk to a phone directly depends on a hub the buyer must also own, and the Mini's discount is built around that hub. Sub-GHz links are usually chosen for range and low power draw, not for pairing with every phone in the room. Whether that trade suits a given cook depends on how many devices already share the home network and how far from the grill the cook expects to stand.

In my view, the smaller form factor is the more interesting part. Wireless probes have mostly been designed around whole roasts and large birds, and a probe that fits a chicken breast or a fillet extends continuous monitoring to more cuts. The Mini does not change how the underlying measurement works. It changes which pieces of food a cook can measure without guessing.