This thing is tiny! Didn't work the way I had hoped. When building a metal house, I mostly work alone. This should be placed on the column and the column moved until it triggers a level alarm. But it did not work. After reaching a level and triggering an alarm that wasn't loud enough, it didn't beep again or was inconsistent. Anyway not worth the price, brought it back. But someone has to do it well! I'm surprised there aren't many options like this on the market.
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