yieryi Digital Sound Level Noise Meter Noise Detector Measurement 30-130dB dB Decibel Detector Audio Tester
Features:
1) Measurement range : 30~130dB.
2) Frequency weighting : A weighting
3) Maximum and Minimum value hold function.
4) Data Hold function.
5) Red back light alarm and sound alarm.
Frequency range:31.5Hz-8.5KHz
Data hold: Maximum and Minimum hold
Resolution:0.1dB
Temperature measurement range:-10°C-50°C(14°F-122°F)
Temperature resolution:0.1°C
Power supply:3*AAA battery