Sound level meter A/C weighing, line chart, record up to 43000 d

A/C frequency weighting selection
Time weighting fast/slow
Three-color light alarm
MAX/MIN/HOLD function
Data storage function - up to 43,000 data records
Read and delete data
Auto power off can be set and also turned off
Date and time display
Linear diagram with visual changes in noise data
Three-color alarm light (high/low value/normal value)
Ability to mount a tripod with a fixed screw hole
Type-C interface
USB charging and computer communication, compatible with the following OS: Microsoft Win 7, 10 and 11 for downloading data record, analyzing real-time data samples, printing a graph.
Complies with the following international standards:
International Electrotechnical Commission Standard: IEC PUB 651 TYPE2
US National Standard: ANSI S1.4 TYPE2

Specifications:
Calibration Sound Source: 94dB@1KHz
Measurement Range: 30~130dB (A), 35~130dB (C)
Accuracy: ±1.5dB (reference sound pressure standard, 94dB@1KHz)
Resolution: 0.1dB
Frequency Weighting: A/C
Frequency Range: 31.5~8500Hz
Time Weighting: FAST/SLOW
Sampling Rate: FAST- 8 times/second; SLOW - 1 times/second
Rated current: 70mA
Standby current: 5uA
Power supply: 3.7V lithium battery / 1000mAh
Charging time: 1.5h
Recording time: up to 8h
Data storage: 43,000
Microphone: 1/2-inch polarization capacitive microphone
Operating environment: 0~50°C; 10~80% RH
Dimensions: 160 x 56 x 31 mm
Weight: 120 grams
DC voltage range: 300mV~1300mV
Package contents:
1 x Sound level meter
1 x USB cable
1 x Operating instructions