This unlabeled and unnamed device looks like a fake Wixey. The manual says there is a low battery indicator but I can't find it. Wixey, the industry leader, has switched to 2032 batteries that don't leak. My last device had a battery leak that destroyed the device. This battery case reveals 3 captive screws that require a precision jeweler's screwdriver, genuine PITA, to open. I'll try and I'm sure everything will be fine while I'm there (81) but coming back is more trouble than good. But I would look a little further for a standard easy access 2032 battery.
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