Understanding RFX MEAT Signal Strength (RSSI)

Summary: Received Signal Strength Indicator (RSSI) measures the quality of the connection between your RFX MEAT probe and the RFX GATEWAY. Maintaining a strong signal is critical not only for data consistency but also for preserving battery life. The closer to 0 you are, the stronger the signal you have.

The Target Signal Range

What is a "Good" Signal?

In most cooking environments, your goal signal strength should be between -70 and -90 dBm.

IMPORTANT: dBm is a negative scale. Closer to zero = stronger. -30 dBm is stronger than -50 dBm, and -50 is stronger than -70. 

Signal Strength Reference Scale

Check the dBm value in your ThermoWorks App settings to see how your current connection is performing:

Signal (dBm)	Quality Rating	What It Means
-20 to -60 dBm	Max / Amazing	Ideal connection; typically occurs when the probe right next to the Gateway.
-70 to -90 dBm	Good	The goal range for most settings. Reliable data transmission.
-95 dBm	Fair	The minimum for reliable connectivity. Some data packets may be slightly delayed.
-100 dBm	Poor / Warning	Packet loss will occur. The probe must work harder to stay connected.
-120 dBm	Unusable	Wireless "noise floor." Connection is sporadic and battery drain is extreme.

How Signal Affects Battery Life

⚠️ Weak Signal = Rapid Battery Drain

When the signal drops to -95 dBm or worse, the probe has to "shout" (increase its power output and re-transmit data multiple times) to get a single reading to the Gateway. This drastically increases power consumption and can drain a battery that would otherwise last for many more cooks.

Tips for Improving Signal

• Line of Sight: Position the RFX GATEWAY so it has the clearest possible "view" of your cooker.
• Minimize Obstacles: Thick brick walls, metal siding, and heavy smoker lids can significantly degrade dBm.
• Proximity: If you are consistently seeing -100 dBm or worse (e.g., -110, -120), move the RFX GATEWAY closer to the cooking area.