UNIT Digital Bluetooth Sound Level Meter Decibel Noise Tester 30-130dB UT353BT
Noise (A Weighting) 30~130dB 0.1dB ±1.5dB. Full battery duration ＞12hrs with Bluetooth function on. clear LCD screen. Main Features 30~40° (≤80%RH). Auto power off. 40~50° (≤45%RH). Low battery indication.