How long is the lead on the high-temperature limit sensor supplied with the SCP-120 (APS-3C)?
The supplied high-temperature limit sensor has a 20 ft (approximately 6 m) lead. The SCP-120 manual lists it as ETI temperature sensor part 25076.
This is the temperature-limit sensor, not the separate snow/ice detection sensor.
Source: SCP-120 (APS-3C) manual, Ordering Information, PDF page 14.