Model: TA657A
Frequency Weightingl: A weighting
Measurement Rangel: 30.0～130 dB
lAccuracyl: ±1.5 dB (at reference sound level,94 dB @ 1 kHz)
Resolutionl: 0.1 dB
Displayl: LED digital display, max reading 1999
Microphone: High-sensitivity l/2 inch capacitive microphone
Frequency Responsel: 31.5 Hz～8 kHz
ISampling Ratel: 2 times/second
Data Holdl: Yes
Max Valuel: Yes
Low Battery Indicatorl: Yes (below 3.3 V)
lAuto Power Offl: 15 minutes
lOperating Environmentl: -10～ 50° C，<80% RH,indoor altitude <2000 m
IStorage Environment
-10～50°C，<70% RH(remove battery)
Size: 133 X 30 X 18 mm
LCD Display Size: 15 X 21 mm
Weight: Approx. 37 g (With battery)
Power Supply: 3.7 V/ 220 mAh lithium battery / USB Type-C port
