LCD Digital Sound Level Meter 30-130dBA Sound Level Meter Test Equipment

Description

This digital sound level meter is designed to meet the measurement requirements of safety engineers, health, industrial safety offices and sound quality control in various environments, including factory, office, traffic, family and sound system.

Features:
Designed according to the following standards: International Electrician Committee Standard: IEC 651 TYPE 2 & ANSI 1.4 TYPE 2.
Wide measurement range: 30-130dB.
Accuracy: up to ± 1.5dB.
Windscreen to filter out unwanted signals.
With 2 equivalent weighted sound pressure levels A and C.
AC & DC analog signal output is available for connection to frequency analyzer level recorder, FFT analyzer and graphic recording.
A frequency weighting for general sound level measurements.
C frequency weighting to check the low frequency content of sound.
Large LCD display with digital readout.
Fast and slow dynamic characteristic modes.
Fast speed to pick up the current reading.
Slow speed to pick up the reading of the average within 1 second.
Maximum value hold function to lock the maximum reading.
Equipped with sponge ball.
Automatic power-off design for energy saving.
Portable, easy-to-use and practical instrument for sound quality control in factory, office, home, school and construction site.

Specifications:
Accuracy: 1.5dB (under reference conditions).
Measurement level: 30-130dB (A) / 35-130dB (C).
Frequency range: 31.5Hz to 8.5KHz.
Linearity range: 50dB / 100dB.
Digital display: 5 digits.
Resolution: 0.1dB.
Bar graph: 50 dB.
Scale at 1 dB steps for monitoring current sound pressure level display.
Overload indication: OVER/UNDER.
Frequency weighting: A and C.
Level ranges: 30-80dB, 50-100dB, 60-110dB, 80-130dB.
Self-calibration time: 3 sec.
Sampling rate: 20 times/second.
AC signal output: 0.707Vrms/full bar graph, output impedance is about 600ohm.
DC signal output: 10mV/dB, output impedance is about 100ohm.
Dynamic characteristic: FAST (high speed) / SLOW (low speed).
Power supply: 4x AA 1.5V alkaline cells (Not included!!!) or DC 6V 100mA.
Microphone: 1/2" Electronic condenser microphone.

Product Specifications

● Product Type: Digital sound level meter.
● Standards: IEC 651 TYPE 2 & ANSI 1.4 TYPE 2.
● Measurement Range: 30-130dB (A) / 35-130dB (C).
● Accuracy: ±1.5dB.
● Frequency Range: 31.5Hz – 8.5KHz.
● Display: 5-digit LCD with 0.1dB resolution and 50dB bar graph.
● Frequency Weighting: A and C.
● Level Ranges: 30-80dB, 50-100dB, 60-110dB, 80-130dB.
● Dynamic Characteristics: FAST and SLOW modes.
● Outputs: AC signal (0.707Vrms) and DC signal (10mV/dB).
● Power: 4 x AA 1.5V batteries (not included) or DC 6V 100mA.
● Microphone: 1/2" electronic condenser microphone with windscreen.
● Features: Max hold, auto power-off, overload indication, self-calibration.
● Applications: Suitable for factory, office, home, school, construction sites, traffic, and sound system quality control.

Packing List

● 1 x Sound level meter.
● 1 x Sponge ball (windscreen).
● 1 x User manual.
● 1 x DC 6V cable.

General Description

This digital sound level meter is a professional-grade instrument designed for accurate noise measurement in a variety of environments including factories, offices, schools, homes, and construction sites.
Compliant with IEC 651 TYPE 2 and ANSI 1.4 TYPE 2 standards, it offers a wide measurement range of 30-130dB with ±1.5dB accuracy.
Features include A and C frequency weighting, fast and slow dynamic response modes, max hold function, and both AC and DC signal outputs for connection to analyzers and recorders.
The large LCD display provides clear readouts with a 50dB bar graph, and the device includes a windscreen to reduce unwanted noise interference.
Powered by 4 AA batteries or a DC 6V adapter, it is portable and easy to use, with automatic power-off for energy saving.