Only the original TAP Kiln Controller can be configured to receive inputs from multiple thermocouples.
The original TAP Kiln Controller is a multi-zone temperature kiln controller and can be configured to accept inputs from up to 3 thermocouples and provide outputs for 3 different elements.
TAP II is a single zone controller and can only be wired to a single thermocouple. The same is true for TAP Monitor, TAP Micro, and TAP&Go.