ET, BT and Air-In 3-Pack Thermocouples (Temperature Probe) K Type



Replacement thermocouple 3-pack for bean temperature (BT), environmental temperature (ET) (below the hopper) and the incoming air probe (at rear of drum) on the Arc Roaster. These 4mm TCs are connected to K-type wires, with adequate length to run back to the motherboard.

BT is the longer thermocouple@ 4 3/16″
ET+Air-In are the shorter thermocouples @ 2 5/8″

Thermocouples should be replaced annually for users commonly roasting dark, or every 2-3 years for users only roasting light.

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