Material used to cover 2-3 wire twisted to a sensor.

I noticed in your webinar you showed a picture of your personal project of an FD RX7. In that picture you showed 4 different connectors near each other and it looked like each connector was 2 wires with twisted wire and it was covered with a black heat tube looking material, but I know it was not heat shirk (I believe) Can you tell me what kind of material you used to cover each pair of wire? Thanks.

DR25? I think I found it. I just got to that part of the course. What I didn't clearly understand was for 2 22guage wires do you use like 1/8" or 1/4" DR25?

1/8" DR-25 would be typical sensor wire covering for 2-3 22awg wires with thin insulation.

Thank you for the informationmation.

G'day David. Yes, I used 1/8" DR25 here :-).