Love this probe. I work as a full time patroler. We are required to do weekly drills and my last one was holding up great. Just bought 2 more. One to replace the one I lost, one for my second setup. I have had an issue with icing on the locking mechanisim. After use just make sure to dry. If your not packing at least a 300 cm you might as well be carring a pencil.