Feature:1. Ultra Long Standby: Lithium battery with direct charging for 200 days, 200 mA low internal resistance lithium polymer battery, Type C high compatibility interface, 5 minutes of charging, 2 hours of battery life, and ultra low usage cost.2. Measurement of Diverse Application Scenarios: Planes, curved surfaces, irregular surfaces, circumferential diameters, and soft objects can be measured, covering all aspects of your life and work. Easy to use, convenient and efficient.3. Reliable Performance: Imported TDK inductors, capacitors, low inertia high accuracy digital encoders, assisted by high accuracy CNC machining of metal housings and high accuracy nylon gears, achieving an ultra long service life.4. 99 Meters Long Distance Measurement: Single 099 meters practical distance measurement, maximum 99 meters (automatic accumulation) ultra long distance measurement, millimeter level accuracy, measurement data, automatic accumulation, accumulation, 10 groups of historical records can be called at any time.5. 10 Practical Functions: Such as straight line measurement, arc measurement, arbitrary curve measurement, irregular surface measurement, cylindrical diameter measurement, accumulation or subtraction of 10 groups of historical records, measurement prompt tone, measurement breathing light, unit switching, etc.Specification:Item Type: Electric Measuring RulerProduct Material: ABSWeight: Approx. 72g / 2.5ozUnit: cm/inOperating Temperature: -10C - 50CMeasurement Range: Single 0-9.99m, Cumulative 99.9mBattery: Lithium Battery, 200mAh (Shipped With Built In Battery)Output Interface: USBInput interface: Type C.Package List:1 x Measuring Instrument 1 x USB1 x Manual