July 30, 2024
Probes are interchangeable when they leave the factory – they can be interchanged and still meet the system accuracy spec that we list on our brochures ( .025 feet per 100 feet). However, soon after being put into service, each probe begins to acquire its own characteristics – a bump here, a knock there, a severe curve in the casing, etc. After a while, correcting the output of one probe to match that of another probe becomes quite difficult and would involve a lot of record keeping. Control cables can also acquire their own characteristics, depending on how they are used. For this reason, we recommend using the same probe and same cable for any particular installation. Also see the question below.