Features: 6 in 1 noise meter and dust detector for real time, simultaneous monitoring of pm 1.0/2.5 and pm10, noise, temperature, and humidity with ±1.5 accuracy and 0.1dBA resolution, solving multi device switching issues for industrial grade environmental assessment. Featuring ABS body with a rechargeable battery, this environmental monitor operates in 10°C to 50°C temperatures and covers a 31.5Hz~8.5KHz frequency ranges, ensuring good performances for long term data collection and analysis. Designed for factory workers, laboratory technicians, environmental agencies, and engineering teams, this device supports precise environmental control and monitoring needs across professional settings. Suitable for diverse scenarios like industrial workshops, outdoor inspections, quiet offices, hospitals, and noisy construction site, it adapts to 30 130dB noise levels for seamless environmental monitoring compatibility. With built in data logging to store historical records and alarm alerts for exceeding preset thresholds in noise or PM2.5, this gas analyzers enables users to analyze trends and take proactive environmental measures. Specifications: Component: ABS Frequency response 31.5Hz~8.5KHz Measurement ranges 30-130dB Builtin battery USB charging Size:Approx.145mm/5.71''x97.2mm/3.83'' Package Includes: 1Piece Multifunction Decibel Meter 1Piece Charging Cable 1Piece Instruction note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.