There is no maximum length for temperature sensor cable but we have done tests and validate for 200 meters length.
The cable to extend : 4 wires 0.34mm² with a complete shield : Braid shield is better than aluminium mylar shield. We recommend braid shield.
Cable example : LIYCY 4*0.34 mm²
You can connect 2 or 3 wires sensors but you lose the calibration. It’s necessary to make a new calibration after installing your iMinilide.
Posted in: Wiring and probes