DIGITAL SOUND LEVEL METER,A WEIGHTE. Item # GGE5URG3. Mfr. Model # 5URG3. Digital Sound Level Meter, 40 to 130 dB Range, Frequency Range 31.5 to 4,000 Hz, A Frequency Weighting, Accuracy +/-3.5 dB, Resolution 0.1 dB, Display 2,000 Count LCD, Fast Response Time, Includes 9 V Battery and Instructions.