configuration TYPE-C fast charging -3.7V lithium battery, long-lasting and easy to IP54 protection - dustproof, suitable for harsh environments on construction sites Aluminum alloy shell - resistant to impact and wear, long-lasting durability Function Dual mode measurement: level and inclinometer in one, supporting one click switching between angle (°) and slope (%) High precision digital display: LCD backlit screen, clearly visible at night Dual assistance: Horizontal lines on both sides, precise marking and positioning Strong magnetic attraction: Four sided magnets, 360 ° adhesion to metal surfaces, more stable measurement Intelligent mode: Data lock (HOLD key freezes values) Automatic flipping (inversion automatically corrects readings) Relative/absolute measurement (freely switchable reference)