HQRP Mini Digital Sound Level Meter Decibel Pressure Monitor 30dB - 130dB plus HQRP UV Chain/UV Meter HQRP&reg; Mini Digital Sound Level Meter plus HQRP&reg; UV Chain / UV Meter; Measuring Range: 30-130dB; Accuracy: 1.5dB (94dB @ 1KHz); Digital LCD Display; Resolution: 4digits & 0.1dB; Frequency Response: 31.5Hz - 8.5KHz; Frequency weighting characteristic: A; Overload indication: OVER/ UNDER. 200 days warranty!