Penlaser Distance Measure With Clip-P40A

●The unique and advanced ASIC technology providing greater reliability and faster measurement.●Continuous distance measure, area/volume measure.●Addition/subtraction, unit and reference change.Pocket clip for easy carry●Perfect for builders, real estate agents, remolding, flooring projects.●“Pen sized” device fits neatly into your top pocket and is always ready when you need it. Measuring   range 40m   (135ft) Accuracy ±3mm Laser Diode <1mW@ 620-690 nm, Class 2 Automatic switch-off 30 sec laser / 120 sec device Measuring units Metric and Imperial Dimension 15.5 X2.3 X   1.8cm (6.1 X 0.9 X 0.7in) Batteries 2 x AAA alkaline batteries Weight 0.04kg