The Rolls SLM305 is a Digital sound level meter with a back lit display. The SLM305 operates off a single 9 volt battery. It features a clean elegant design with high quality construction throughout. It features a MAX button to turn on and off a maximum level reading feature making it easy to get a good reliable maximum dB reading rather than just guessing it yourself off of an erratic display. The SLM305 also has an automatic OFF function that will turn the unit off after 10 minutes to save your battery.

SLM305 Digital Sound Level Meter

    Auto off to preserve batteries
    Accurate to +/- 1dB
    MAX hold dB feature
    Automatic backlight display
    Low battery indication
    Operates off of a single 9V battery

Specifications

    Measuring range: 30dBA to 130dBA
    Digit resolution: 4 digit & .1dB metering
    Frequency responce: 31.5Hz to 8.5KHz
    Sampling rate: 2 times/sec.