1、Fast measurement, it only takes 0.25s to measure, the speed is fast and accurate, and the distance measurement is accurate to 1 mm. 2、Supports long‑distance measurement, its longest distance supports 120 meters, and it can maintain accuracy while measuring long distances. 3、Built‑in electronic angle sensor, it can display the measurement angle in real time, easily find the right angle, the angle is accurate to 0.1°. 4、99 sets of data storage, you can easily view, record and measure data conveniently. 5、Low‑power design, it consumes less energy and saves electricity, making it safer to use and prolonging the use time. Item Type: Rangefinder Model: FY899 Material: ABS Power Supply: 3x1.5V AAA Batteries (Batteries Not Included) Purpose: It is suitable for laser ranging. Product Number FY899 Measuring Distance 120m Data Storage 99 Groups HD Large Screen 2.0 Inch Electronic Level √ Maximum/Minimum √ Key Tone √ 0.25 Second Flash Test √ Addition and Subtraction Function √ Front and Back Reference Switch √ Power Display √ Automatic Shut-Down √ Measurement Error ±0.2mm Single Measurement Time 0.25S Operating Temperature 0℃~40℃ Storage Temperature -20℃~65℃ Number of Measurements Per Battery About 5000 Times 1 x Rangefinder (Battery Not Included) 1 x Bag 1 x Lanyard 1 x Manual