Equipped with high-speed algorithm chip, this laser distance meter can deliver instant and precise measurement. It is capable of measuring length, area and volume. It can also be used for indirect measurement through Pythagorean theorem. It has mini size which makes it quite portable, widely used in construction industries, especially for large areas such as rooms, apartments, buildings, real estates, factories, etc.Features:Millimeter Precision- equipped with high-speed algorithm chip and upgraded lens, this meter delivers stable and precise measurement with accuracy of 2mm.Capability- 0.1s quick measurement of distance, area, volume, indirect measurement through Pythagorean theorem.Practical Functions -unit switchable among meter (m), inches (in), feet (ft); auto-shut off in 150s.Stay Accurate- with self-calibration which allows users to calibrate the meter whenever neceary, with adjusting range from -9 to 9mm.Rechargeable Battery- built-in rechargeable battery has a large capacity of 850mAh and can be easily charged via Type-C USB cable.Mini Size- it's small enough to fit in any jacket or trouser pocket, widely used in interior decoration, indoor design, construction field.Specifications:Brand: SNDWAYMaterial: Aluminium alloyColor: BlackModel: SW-B40 / SW-B50 / SW-B60(Optional) Model SW-B40 SW-B50 SW-B60 Max. measuring range 40m 50m 60m Laser color Red Reference point 2(rear, front) Accuracy (2mm+ d*10^-4) Continuous measure ye Area measure ye Volume measure ye Pythagorean measurement Full mode Unit option m/in/ft Working temperature 0C~40C Storage temperature -20C~60C Storage humidity 20%~80% RH Min/Max value ye Self-Calibration ye Laser level II Laser type 630-670nm,<1mW Automatically cut off laser 20 Automatic shutdown 150 Battery 3.7V 850mAh lithium battery Buttons/keys sound ye Item Size: 100.3 * 33.4 * 18.3mm / 3.94 * 1.31 * 0.72inItem Weight: 68g / 2.39ozPackage Weight: 136g / 4.79ozPackage Size: 16 * 9 * 3.5cm / 6.29 * 3.54 * 1.37inPacking List:1 * Laser Distance Meter1 * Carrying Bag1 * USB cable1 * User Manual (English) Many Questions about Dropshipping Services Are As Follows: 1.How many orders can you handle per day?we are a large company in Shenzhen,China,with a large warehouse that can handle large orders everyday.We send out countle parcels everyday.We can guarantee the order you request. 2.How fast can you proce orders?We will arrange shipment as soon as poible after you pay the order.Priority delivery for dropshipping order 3.Could you ship order without any receipts,invoices and promotional offer inside the package?Absolutely!No invoices,receipts,promotional offer if you leave notes on the order(if you want,we can provide.) 4.If you need other products?We can provide most products you need as much as poible1 If you have any other questions,please feel free to contact us.We are very grateful to cooperate with you. 5.We can support CSV/Excel File Dropshipping. 6.There is no limited stock to fulfill the orders on a daily basi