【Wide Ranges, High Accurate】Gedaye ET-973 decibel meter is automatically calibrated every time it is turned on. The Noise Meter features a high-sensitivity, high-precision condenser microphone, capable of measuring noise levels from 30 to 130 dB, high accuracy of ±2.0 dB, frequency from 31.5 Hz to 8K Hz. 【A/C Weighting, Fast/Slow Measurement】The instrument employs A-frequency weighting for measurements, simulating the human ear's response to sound. This is particularly suitable for assessing the impact of environmental noise on hearing. The fast response rate of 125 milliseconds is appropriate for routine environmental measurements; the slow response rate of 1 second is suitable for measurement scenarios in environments with significant fluctuations in noise levels. 【Thermometer, Digital LCD Display】The noise meter contains thermometer fuction, range from -4℉ to 140 ℉, accuracy ±1.8℉. It's colorful LCD digital screen with backlight, You can easily read even when you are at night or in sunlight. 【Date Hold, Max/Min Measurement】The sound pressure level meter has a Max/Min measurement value, which indicates the High/Low peak value of the sound produced over a certain period of time. The data hold function freezes the current reading to facilitate data recording. 【Extensive Application Scenarios】Gedaye sound level meter complies with IEC standards and is suitable for measuring traffic noise, industrial noise, workshop noise, and the performance of sound systems. It is perfectly suited for monitoring noise levels in communities, home cinemas, vehicles, schools, offices, and factories, providing reliable data support in all these settings. 【Package Include】1x Sound Level Meter, 3*AA 1.5V LR6 Battery, 1x Instruction Manual, 1x Type-C Cable. (Service: If the product has quality problems, will offers a 1-year free replacement). Product Description
This professional high-precision sound level meter is a powerful sound measurement device designed to accurately gauge environmental noise levels, serving as your ultimate tool for safeguarding quiet in both home and workplace settings. With a measurement range spanning 30dB to 130dB, it accommodates diverse environmental requirements—from library-like tranquillity to the roar of aircraft engines. Combining noise monitoring with temperature and humidity detection, this multifunctional device serves as an ideal tool for environmental assessments, industrial inspections, and verifying noise reduction measures in domestic settings.

Core Feature Highlights
Wide-range, high precision: Featuring an extensive measurement range of 30 to 130 dB with an accuracy of ±2.0 dB, it reliably captures everything from the faintest sounds—such as falling leaves (30 dB)—to the most piercing noises—like a shrill train whistle (130 dB)—ensuring precise and dependable measurement results.
Rapid Response: Utilising highly sensitive microphone sensors and digital processing technology, it responds swiftly to sound variations, achieving 125-millisecond rapid lock-on to exceedance noise.
Extra-large display for instant readability: Featuring a large LCD colour backlit display that ensures clear and intuitive readings. Even in dim lighting conditions, current noise levels, maximum and minimum values, temperature and humidity, and battery status remain clearly visible. Intuitive and user-friendly.
Two power supply options: typically supports battery or USB power, ensuring extended usage in outdoor or mobile scenarios.

Technical Specifications
Measurement range: 30 dB ~ 130 dB
Frequency range: 31.5 Hz～8k Hz
Accuracy: ±2.0 dB
Temperature range: -20℃ ～ 60℃ / -4℉～140℉
Accuracy: ±1.0°C / ±1.8°F
Resolution: 0.1
Frequency weighting: A/C
Response time: FAST: 125ms, SLOW: 1s
Additional functions: Temperature and humidity measurement, HOLD, MAX/MIN values, AVG
Power supply: Battery-powered or USB

Wide range of applications
Home and Community: Detecting noise from neighbours, household appliances in operation, and construction activity around the estate, providing objective evidence to uphold a tranquil residential environment.
Office and Study: Assessing the quietness of offices, studies, and libraries to create environments conducive to efficient work and study.
Industrial production and construction sites: Monitoring noise emissions from factory workshops and building sites to ensure compliance with environmental regulations and occupational health and safety standards.
Environmental Protection and Public Spaces: Environmental noise monitoring for areas such as parks, schools, and hospitals safeguards the environmental quality of public spaces.

This professional high-precision noise meter serves as your indispensable “environmental silence guardian”, offering accurate measurement capabilities,