One centimetre here and there is really not inconsequential, use an electric measuring tool to be safe. You get great flexibility since it runs on a battery and lacks a cord that c
From ManoMano
Stanley - Intelli Tools STHT1-77140 tlm 330 True Laser Measure 100m INT177140
ITS
Stanley FatMax STHT1-77140 100m Laser Distance Measurer with Bluetooth Connectivity
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