Double Bubble Level Unique Double bubble levels and automatic calibration ensure the meter is balanced for accurate | Mute Function In some quiet places, you can activate the key mute function so as not to disturb others. | Aspherical Optical Focusing Lenses Improved reception of reflected light for accurate, stable measurements and low power consumption | 99 Stored Data of Memory Up to store 99 sets of data, easy to view at any time. |
