About Benetech GM1357 Digital Sound Level Meter
The Benetech GM1357 is a professional digital sound level meter designed for precise noise measurement across Pakistan. Trusted by safety engineers, industrial hygienists, acoustics consultants, and quality control professionals in Karachi, Lahore, and Islamabad, this instrument delivers accurate sound pressure level readings for diverse applications.
Noise monitoring is essential for workplace safety compliance, environmental assessment, product quality control, and community noise regulation. The GM1357 measures from 30dB to 130dB with ±1.5dB accuracy, meeting IEC651 TYPE2 and ANSI S1.4 TYPE2 international standards.
Why Choose the Benetech GM1357 for Noise Measurement?
The GM1357 offers 30-130dB wide measurement range for versatile applications, ±1.5dB high accuracy for reliable readings, A and C frequency weighting for different measurement needs, Fast/Slow response time for transient or steady noise, 4-digit LCD with backlight and 50dB bar graph, data hold and MAX recording, AC/DC output for external analyzers, auto power-off to conserve battery, and meets IEC651 & ANSI S1.4 TYPE2 standards.
Frequency Weighting: A vs C
- A-Weighting (dBA): Simulates human ear response at lower sound levels. Used for general environmental noise, workplace safety, community noise ordinances, and hearing conservation programs.
- C-Weighting (dBC): Provides flatter response for measuring peak sound pressure levels and low-frequency noise. Used for machinery noise, industrial equipment, and audio system calibration.
Key Specifications
- Measurement Range: 30-130dBA, 35-130dBC
- Accuracy: ±1.5 dB (under reference conditions)
- Frequency Range: 31.5Hz - 8.5kHz
- Level Ranges: 30-80, 50-100, 60-110, 80-130, 30-130dB
- Resolution: 0.1dB
- Sample Rate: 2 times/second (digital display), 20 times/second (bar graph)
- Bar Graph: 50dB scale at 1dB step
- Time Weighting: Fast (125ms) / Slow (1s)
- Microphone: 1/2 inch electret condenser
- AC Output: 0.707Vrms at FS, output impedance approx. 600Ω
- DC Output: 10mV/dB, output impedance approx. 100Ω
- Power Supply: 1.5V AA alkaline batteries or DC 6V 100mA (max DC9V)
- Battery Life: Approximately 30 hours (alkaline batteries)
- Self Calibration Time: 3 seconds
- Operating Conditions: 0-40°C, 10-80% RH
- Storage Conditions: -10-60°C, 10-70% RH
- Dimensions: 256 × 70 × 35 mm
- Weight: 308g (including battery)
Key Benefits for Pakistani Users
- Factory Noise Monitoring: Measure industrial noise levels in Karachi's manufacturing facilities to ensure workplace safety compliance.
- Office Acoustics: Assess background noise levels in Islamabad's commercial buildings for employee comfort and productivity.
- Traffic Noise Measurement: Monitor environmental noise pollution from traffic in Lahore's busy urban areas.
- Home Sound Testing: Evaluate noise levels from appliances, HVAC systems, and external sources.
- Audio System Calibration: Set up PA systems, home theaters, and studio monitors for optimal sound.
- HVAC Noise Diagnosis: Identify noisy HVAC equipment and diagnose vibration issues.
- Laboratory Research: Precise acoustic measurements for research and development.
Typical Sound Levels for Reference
- 30dB: Quiet library, whisper
- 40-50dB: Quiet office, residential area at night
- 60-70dB: Normal conversation, background music
- 80-85dB: Heavy traffic, factory noise (8-hour exposure limit)
- 90-100dB: Lawn mower, subway train
- 110-120dB: Rock concert, chainsaw
- 130dB: Jet engine takeoff (pain threshold)
Standards Compliance
The GM1357 is designed according to IEC651 TYPE2 and ANSI S1.4 TYPE2 standards for sound level meters, ensuring reliable and comparable measurements across different instruments and applications.
Applications of GM1357 in Pakistan
The GM1357 is essential for:
- Industrial Safety: Workplace noise exposure monitoring for OSHA compliance
- Environmental Noise: Traffic, construction, and community noise assessment
- Acoustic Engineering: Room acoustics, sound system setup, and noise control
- HVAC Diagnostics: Equipment noise measurement for troubleshooting
- Product Quality: Noise testing for appliances, machinery, and vehicles
- Laboratory Research: Acoustic measurements for R&D
- Educational Training: Teaching sound measurement principles
Authorized Benetech Distributor in Pakistan
Instrument Technology Link is an authorized distributor of Benetech test instruments in Pakistan. With offices in Karachi, Lahore, and Islamabad, we provide genuine products, calibration support, and after-sales technical service. We deliver nationwide to all major cities including Faisalabad, Rawalpindi, Multan, Peshawar, Quetta, and Hyderabad.
Whether you need a sound level meter for factory noise monitoring, office acoustics, traffic noise measurement, or industrial safety compliance, the Benetech GM1357 offers professional features with 30-130dB range and A/C weighting. Contact us for current pricing and availability in Pakistan.
