Testo 815 Sound Level Meter

Product description: The ideal instrument for daily use. Whether it is for air conditioning or heating, disco noise, machine noise or noise in combustion systems, testo 815 is the ideal partner. Technical data:\t Storage temperature -10 to +60 °C Operating temperature 0 to +40 °C Battery type 9V block battery Battery life 70 h Dimensions 255 x 55 x 43 mm Sound: Technical data\t Measuring range +32 to +130 dB Accuracy ±1.0 dB Resolution 0.1 dB