So, 2 weeks+ after I last checked, I called them again. Back then, their chrono had broken and they were awaiting one. Turned out first replacement was an open top one which it turned out didn't work indoors under fluorescent (pulsing) lighting. Second one had a battery fault. So, since I was going to be out and about anyway, I offered to lend them mine! Somewhat to my surprise, they accepted. Oh well, hope I get a discount for this!