With this probe, you gain full control over the temperature in your smoker or grill. The easy attachment of the probe using the bracket on the grate allows for monitoring the ambient temperature. It connects to the free iGrill app. Treat your iGrill thermometer to an additional probe for monitoring the temperature in the cooking chamber. With the iGrill 2 and iGrill 3 devices, you can independently read up to four temperature probes at a time.