Description
Introduction Digital Sound Level Meter AS824
Accurate noise assessment protects workers, supports compliance, and improves product design, and the AS824 Digital Sound Level Meter delivers that accuracy in a compact, handheld form. Manufactured by Smart Sensor, this instrument captures sound through a 1/2-inch electret condenser microphone and converts it into a precise decibel reading across a 30 to 130 dB range. Because the meter offers both A and C frequency weighting along with Digital Sound Level Meter AS824 Fast and Slow time response, it adapts easily to industrial, environmental, and acoustic testing needs. The bar graph display updates every 50 milliseconds, therefore users see sound fluctuations almost as they happen.
SPECIFICATIONS Digital Sound Level Meter AS824
| Specification | Detail |
| Model | AS824 |
| Brand | Smart Sensor |
| Measurement Type | Sound pressure level (noise/decibel) |
| Measuring Range | 30–130 dBA, 35–130 dBC |
| Resolution | 0.1 dB |
| Accuracy | ±1.5 dB (under reference conditions) |
| Frequency Range | 31.5 Hz to 8.5 kHz |
| Frequency Weighting | A, C |
| Time Weighting | Fast / Slow |
| Microphone | 1/2 inch electret condenser microphone |
| Display | 5-digit LCD with 50 dB bar graph (1 dB step) |
| Sampling Rate | 2 times/sec (Fast), 1 time/sec (Slow) |
| Level Ranges | 30–80 dB, 50–100 dB, 60–110 dB, 80–130 dB |
| Output | AC: 0.707 Vrms at FS; DC: 10 mV/dB |
| Power Supply | 9V battery or DC 9V/100mA adapter |
| Self-Calibration Time | 10 seconds at every power-on |
| Operating Temperature | 0°C to 40°C |
| Operating Humidity | 10% to 80% RH |
| Storage Temperature | -10°C to 60°C |
| Dimensions | Approx. 224 x 66 x 33 mm |
| Weight | Approx. 225 g |
| Standard | Designed per IEC651 Type 2 and ANSI S1.4 Type 2 |
Key Features Digital Sound Level Meter AS824
- Measures sound pressure levels from 30 to 130 dB with 1 dB resolution
- Delivers ±1.5 dB accuracy under standard reference conditions
- Offers both A and C frequency weighting for versatile noise analysis
- Switches between Fast and Slow time weighting modes
- Displays readings on a clear 5-digit LCD with a real-time bar graph
- Captures sound through a sensitive 1/2-inch electret condenser microphone
- Holds maximum readings automatically for later review
- Provides AC and DC output for connection to external recorders and analyzers
- Completes self-calibration within 10 seconds of power-on
Applications Digital Sound Level Meter AS824
- Workplace and factory noise level monitoring
- Environmental and community noise assessment
- Classroom, office, and public space acoustics testing
- Occupational health and safety compliance audits
- Audio equipment and speaker performance testing
- Traffic and construction site noise surveys
- Research and educational acoustics projects
Who Uses This Digital Sound Level Meter AS824
- Safety officers who monitor workplace noise exposure limits Digital Sound Level Meter AS824
- Industrial engineers who assess factory and machinery noise levels
- Environmental inspectors who evaluate community and construction noise
- Audio technicians who test speaker and sound system output
- Researchers and students who study acoustics and sound behavior
- Facility managers who ensure office and public spaces meet noise standards Digital Sound Level Meter AS824
Frequently Asked Questions (FAQ) Digital Sound Level Meter AS824
Q1: What is the measurement range of the AS824?
The AS824 measures sound levels from 30 to 130 dBA and 35 to 130 dBC, which covers most industrial and environmental noise conditions.
Q2: Does this meter support different frequency weightings?
Yes, the AS824 offers both A and C frequency weighting, so users can switch between general noise measurement and low-frequency analysis.
Q3: How accurate is the AS824 Digital Sound Level Meter?
The meter delivers ±1.5 dB accuracy under standard reference conditions, which meets the needs of most professional testing applications.
Q4: What type of power does this meter require?
The AS824 runs on a 9V battery or a DC 9V/100mA power adapter, therefore users can choose battery operation or continuous mains power.
Q5: Can I connect this meter to external recording equipment?
Yes, the meter provides AC and DC output, so it connects easily to frequency analyzers, level recorders, and similar devices.
Q6: Does the meter need calibration before each use?
The AS824 performs a self-calibration routine automatically within 10 seconds of power-on, so no manual calibration step is required for standard use.
Q7: Does ASTZBD provide genuine, original Smart Sensor products?
Yes, ASTZBD sources the AS824 as an authentic Smart Sensor unit and offers after-sales support for all genuine purchases.
Why Buy From ASTZBD
- ASTZBD supplies 100% genuine Smart Sensor instruments, so customers avoid counterfeit or unverified units
- Our team checks every meter for accuracy before dispatch, which protects buyers from defective devices
- We offer prompt delivery across Bangladesh along with responsive pre-sale and after-sale support
- ASTZBD prices this professional-grade meter competitively without compromising on quality
- Our replacement policy covers genuine manufacturing defects, giving customers added confidence
- We continue expanding our catalog with reliable measurement instruments suited to industrial and safety needs in Bangladesh
