This mini laser-measure tool is IPX54 waterproof, dustproof and drop proof. Adopts millimeter-level accuracy chip, it can calculate the measurement data in seconds. With LCD screen, you can see the measurement data and remaining electricity clearly. Wide applications, it can be widely used in surveying and mapping, , construction engineering, and etc. Continuous measurement: allows continuous measurement of different targets without the need to press the measurement button repeatedly, and it will display maximum value and minimum value. With own roller, it can realize the cumulative measurement of the . Equipped with 99 group of data memory storage function, you can save and the data whenever and wherever you . Wide applications, it can be widely used in surveying and mapping, , construction engineering, and etc.. Specifications: Name: laser-Rangefinder laser-power: Less than 1mv,laser-class: Class II. Measurement ranges: 0.1-100M Ranging accuracy: 1.5mm Battery: 2 * AA battery (not included) Display: LCD display Units: m/ft/in laser-type: 630-670nm, Less than 1mW Operating temperature: 0-40 (32-140) Storage temperature: -10 to 60 (14-140) Waterproof: IPX54 : ABS+ colour: As shown Package Contents: 1 x laser-Rangefinder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.