| Model | RT-911A |
| Measuring Range | 35dB~135dB |
| Accuracy | ±2.0dB |
| Frequency Range | 31.5Hz~8KHz |
| Frequency Weighting | dBA |
| Dynamic Range | 50dB |
| Time weighting | Fast:125ms/ Slow:1s |
| Temperature Range | -20oC`70oC/-4CF`158oF |
| Temperature Accuracy | ±1.5ºC/2.7ºF |
| Temperature Resolution | 0.1 |
| Microphone | 1/2 inch electrets condenser microphone |
| High/Low reading indication | LCD displays Hi(„100db),LCD displays LO(ƒ100db) |
| Microphone | 1/2 inch electrets condenser microphone |
| Operating Conditions | -20~60ºC/-4ºF~140ºF;10%RH ~90%RH |
| Storage Conditions | -20~60ºC/-4ºF~140ºF;10%RH ~75%RH |
| Power Supply | 3*1.5V “AAA” batteries |
| Battery Life | Over 60 hours |
| Dimension(L*W*H) | 144*56*30.5mm |
| Weight | 73g |
| Measuring Range | Lo:30~80dB; Med: 50~100dB: |
| Hi:80~130dB; Auto: 30~130dB: | |
| Accuracy | ±1.4dB |
| Dynamic Range | 31.5Hz~8kHz |
| Frequency weighting | A&C |
| Time weighting | FAST 125ms; SLOW (1s) |
| Sampling Rate | 2 Times/Second |
| Microphone | ½ inch electric condenser microphone |
| Operating Conditions | -20º~60ºC/-4º~140ºF;<90%RH (Non-condansation) |
| Storage Condition | -30º~70ºC/-22º~158ºF;<75%RH |
| Dimension (L*W*H*) | 189*62*33*mm |
| Weight | 178g |
Our Digital Sound Meters provide accurate sound level measurements, ensuring dependable results for noise monitoring, compliance testing, and environmental assessments.
Designed to measure a broad range of sound levels, our instruments are suitable for both low-noise environments and high-noise industrial applications.
Advanced microphones and processing technology ensure quick response times and stable readings, allowing users to capture real-time sound measurements effectively.
The large LCD screen provides clear visibility of readings, making measurements simple and convenient in both indoor and outdoor environments.
Users can select response times based on application requirements, enabling accurate monitoring of both fluctuating and steady noise levels.
Built with high-quality materials, our Digital Sound Meters are designed for long-term reliability even in demanding industrial environments.
A Digital Sound Meter is an electronic instrument used to measure sound pressure levels (SPL) and noise intensity in various environments. It displays noise levels in decibels (dB).
Sound levels are measured in decibels (dB), which indicate the intensity of sound.
Most Digital Sound Meters measure from approximately 30 dB to 130 dB, although professional models may offer wider ranges.
Professional Digital Sound Meters typically offer accuracy ranging from ±1.0 dB to ±1.5 dB, depending on the model and calibration status.
Yes. Digital Sound Meters are commonly used to monitor noise generated by industrial equipment, generators, compressors, motors, and production machinery.
Many advanced models offer data logging capabilities, internal memory, USB connectivity, or PC software integration for recording and analysis
A sound calibrator is a reference device used to verify and adjust the accuracy of a Sound Meter before measurement.
Yes. Most models are lightweight, compact, and battery-operated, making them ideal for field surveys and on-site inspections.