content: This product is rated up to 500F. I was catering an event yesterday and preheated my grill to 325F and within two minutes of placing the meat and probe on the grill the wires burt and melted where the wire meets the probe. I can fully understand why this seller is rated 3 stars. I was cooking a dinner party for 50 and had to wing it on the meat because of this cheap product. It is a rip off for >41.00 with shipping.