Looking at getting one of these but a little confused regarding model numbers, which of the below is the one to go for to use on a Sierra Cosworth.

3844 MTX-L: 8 Ft. Sensor Cable (Overall length 10 ft.)

3845 MTX-L: (POWERSPORTS) 3ft. Sensor Cable (Overall length 4.5ft.)

Also are they compatible with the IECS monitors https://passionford.com/forum/trader...l-address.html as it mentions 3 brands but not this one, i forgot to ask Mike yesterday.

Cheers