The Epoxi probe stiff cable (ZACNTCF) is useful for more complex installations, like canalizations (for example, for radiant floor protection), making easier its installation without any kind of guide cable. A cable of 3 m is included in the product packaging.
The difference between the old NTC68F product and the new ZAC-NTCF is the temperature probe length (2.3m vs 3m).