it seems like all probes are garbage.
They are definitely the weak link in the systems. Unfortunately for improvement, you'd be asking the mfgr's to give up the only reason you're going to have for spending more $$ with them after your initial purchase. Bet that doesn't happen.
When you buy a digital therm, you need to understand the probes are not lifetime items and will need periodic replacement. That's why I value my collection of analog leave in's. I've never had to replace a battery or probe on one yet.