The M-3 Standard probe will be shipping out with both the MAK 1 and 2 Star General Grills but many customers prefer to have more than one to make cooking meat faster. These highly durable probes should be used for long cooks at temperatures 350F and below. They should not used at cooking temperatures higher than 350F. The M-3 PROBE has a ONE YEAR LIMITED WARRANTY. This is a high quality American Made stainless steel probe and cable. It's easy to clean and very durable.