Digital 4-in-1 Sound Level Meter — Temperature & Humidity, 30-130dB Decibel Measuring Instrument, Accurate Readings

Portable 4-in-1 digital sound level meter that also monitors temperature and humidity for dependable environmental noise checks. Key specifications: Measuring range:30-130dB. Frequency respond range:31.5Hz-8.5KHz. Frequency Weighting:A Weighting(Ambient noise). Response: Fast. Accuracy:±1.5dB(standard sound source 94dB@1KHz).