Flame Boss Temperature Probe Y-cableThe Temperature Probe Y cable can be used with a Flame Boss model 300 smoker controller to add additional probes. You can use two Y cables to add two additional meat probes for a total capacity of 3 meat probes. The Y cable works with High Temperature Probes and Probes with Coated Cables. Use the following configuration for using 1 or 2 Y cables to monitor 2 or 3 meat probes: 2 Meat Probes: Plug 1 Y cable into the pit jack on the Flame Boss 300