I use Eneloop over alkaline after a horror incident with leaking cells, the whole battery tab was covered with greenish white alien growth, fortunately a little vinegar and complete disassembly and wash in distilled water saved the meter. The fact that it uses 4 cells increases the chances of leakage.
Does anyone knows if Eneloop leaks, I have heard of NiMH leaks but never seen them personally. The worst I have seen is greyish white growth on the positive top of a GP AA NiCD and a very lausy Powerizer AAA NiMH.