SOUND LEVEL METER The BS15 is a robust and precise measuring instrument that can be used both indoors and out. It possesses a whole host of features which you would otherwise only expect to find in a much higher priced sound level meter. Exposure to high levels of noise is one the most significant stress factors of our day and age. It is not without reason that loss of hearing is the most highly registered occupational illness within the EU. Yet excessive noise is not only restricted to the workplace – it is also the No.1 stress factor in the home and outside the house during leisure time. Technical data:  Measuring range: 40 - 130 dBA ( 31.5 Hz - 8 kHz)  Accuracy: ± 3.5 dB ( at 1 kHz and 94 dB)  Display resolution: 0.1 dB Reaction time: 125 ms Functions: minimum and maximum display value, hold function, illuminated display, auto power off Operating conditions: 0° C to 40° C, 10% to 75% r.h. Dimensions: 130 x 52 x 32 mm Weight: 135 g Scope of delivery: measuring device, battery, wind protection cover, operating instructions