This handheld laser rangefinder 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, home improvement, construction engineering, and etc..    Features:  ABS housing with TPR soft rubber design, IPX54 waterproof, dustproof and drop proof, wear resistant and can provide long service time.  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.  Multifunctional design: support length measurement, area measurement, volumes measurement, pythagorean measurement, height measurement, angle measurement, timer measurement, single and continuous measurement.  Single measurement mode: press button once to switch on the laser line, press one more time to measure the distance between the rangefinder and the object to be measured.  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.  Comes with its own rollers, which can achieve curve path accumulation measurement.  Equipped with 99 group of data memory storage function, you can save and view the data whenever and wherever you want.  Wide applications, it can be widely used in surveying and mapping, home improvement, construction engineering, and etc..    Specifications:  Name: Laser Rangefinder  Material: ABS+TPR  Type: 50M, 70M, 100M (optional)  Measurement ranges: 0.1-50M, 0.1-70M, 0.1-100M (according to your selection)  Ranging accuracy: ±1.5mm  Battery: 2 * AA battery (not included)  Display: LCD display  Units: m/ft/in  Laser type: 630-670nm, ＜1mW  Operating temperature: 0-40℃ (32-140℉)  Storage temperature:  -10℃ to 60℃ (14-140℉)  Waterproof: IPX54  Item size: 130 * 51 * 28mm / 5.12 * 2.01 * 1.10in  Item weight: 107g / 3.77ounce  Package size: 80 * 59 * 152mm / 3.16 * 2.32 * 5.98in  Package weight: 276g / 9.74ounce    Packing List:  1 * Laser Rangefinder