About Benetech GM1356 Professional Sound Level Meter
The Benetech GM1356 is a professional digital sound level meter designed for advanced noise measurement across Pakistan. Trusted by noise engineers, quality control professionals, industrial hygienists, and environmental consultants in Karachi, Lahore, and Islamabad, this sophisticated instrument delivers accurate sound pressure level readings with extensive data logging capabilities.
Noise monitoring is essential for workplace safety compliance, environmental assessment, product quality control, and community noise regulation. The GM1356 measures from 30dB to 130dB with ±1.5dB accuracy, featuring 4700 data record storage and USB PC connectivity for comprehensive analysis.
Why Choose the Benetech GM1356 for Professional Noise Measurement?
The GM1356 offers 30-130dBA / 35-130dBC 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, 4700 data record storage for extended monitoring, USB PC connectivity for data download and analysis, 4-digit LCD with analog bar graph, automatic backlight, MAX value holding, AC and PWM signal output for external equipment, calendar function for time-stamped records, auto power-off after 10 minutes, and meets IEC651 TYPE2 and ANSI S1.4 TYPE2 standards.
Key Specifications
- Measurement Range: 30-130dBA, 35-130dBC
- Accuracy: ±1.5dB (94dB@1kHz reference)
- Frequency Response: 31.5Hz - 8.5kHz
- Frequency Weighting: A and C
- Time Weighting: Fast (125ms) / Slow (1s)
- Resolution: 0.1dB
- Dynamic Range: 50dB / 100dB
- Data Storage: 4700 records
- PC Connectivity: USB (data download, real-time analysis, graph printing)
- Display: 4-digit LCD with analog bar graph (1dB/bar)
- Sampling Rate: Fast: 8 times/second, Slow: 2 times/second
- AC Signal Output: 4Vrms/full bar graph, output impedance ~600Ω
- PWM Signal Output: Duty cycle = 0.01 × dB value / 3.3 × 100%
- Microphone: 1/2 inch polarization capacitance microphone
- Calendar Accuracy: ±30 seconds/day
- Power Supply: 4 × AA alkaline batteries (6V)
- Battery Life: Approximately 20 hours continuous use
- Auto Power Off: After 10 minutes without operation
- Dimensions: 256 × 70 × 35 mm
- Weight: 244g (without batteries)
Key Benefits for Pakistani Users
- Factory Noise Monitoring: Log noise levels in Karachi's manufacturing facilities with 4700 data records for compliance reporting.
- Office Acoustics: Assess background noise levels in Islamabad's commercial buildings with time-stamped data.
- Traffic Road Noise: Monitor environmental noise pollution from traffic in Lahore's busy urban areas with long-term data logging.
- Quality Control: Document product noise testing with USB data export for reporting.
- Health Prevention: Identify potentially harmful noise exposure levels with professional accuracy.
- Research & Analysis: Download data to PC for real-time sampling analysis and graph printing.
Professional Data Logging Features
The GM1356's 4700 data record storage allows extended monitoring of noise levels over time. The USB PC connectivity enables:
- Data record downloading to PC
- Real-time data sampling analysis
- Printing graph and data functions
- Time-stamped records with calendar function
- Comprehensive reporting for compliance
Standards Compliance
The GM1356 is designed according to IEC651 TYPE2 and ANSI S1.4 TYPE2 international standards for sound level meters, ensuring reliable and comparable measurements across different instruments and applications.
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)
Applications of GM1356 in Pakistan
The GM1356 is essential for:
- Industrial Safety: Workplace noise exposure monitoring with data logging
- Environmental Noise: Traffic, construction, and community noise assessment
- Quality Control: Product noise testing with documentation
- Acoustic Engineering: Room acoustics and sound system setup
- HVAC Diagnostics: Equipment noise measurement for troubleshooting
- Research & Development: Acoustic measurements with data analysis
- 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 road measurement, or professional data logging applications, the Benetech GM1356 offers professional features with 4700 data record storage and USB PC connectivity. Contact us for current pricing and availability in Pakistan.
