This electronic tape measure have practical functions, such as straight measurement, circles measurement, arbitrary curved measurement, irregular measurement, cylindrical diameter measurement, and so on The digital display screen of the tape measure is clear and easy to read, and the unit display can be switched, which is very intelligent This tape measure is small enough to be used in environment ranging from ‑10℃ to 50℃ and can be carried around This electronic tape measure use low power semiconductor microprocessor to achieve standbys time and battery lifespans This electronic tape measure have a ranges of 0‑199.99m, which can meet your basic needs, Manufacturer: XAGMODSHN