STP 78 :: What are the red and black wires for? Nov 28, 2014 | What are the red and black wires for? 1 Comment admin on November 28, 2014 at 6:38 pm The Red wire on the OAT Probe is power, Black wire is Signal and the Bare is ground.
admin on November 28, 2014 at 6:38 pm The Red wire on the OAT Probe is power, Black wire is Signal and the Bare is ground.
The Red wire on the OAT Probe is power, Black wire is Signal and the Bare is ground.