Monitor your environment with precision using this advanced 4-in-1 Decibel Meter, featuring an 11-inch LED screen that clearly displays sound level, temperature, humidity, and time. Designed with user convenience and accuracy in mind, this versatile meter is perfect for a wide range of applications including classrooms, studios, factories, construction sites, offices, and homes. Key Features: · 4-in-1 Multifunctional Display: Simultaneously measures and shows sound level (dBA), temperature (℉), humidity (%), and time on a large, bright 11-inch LED screen with adjustable brightness for easy reading in any lighting condition. · High Accuracy Sensor Technology: Equipped with an intelligent air semiconductor sensor, this meter delivers highly sensitive, stable, and accurate measurements with a sound level accuracy of ±1.5 dBA across a range of 30-130 dBA. · Wide Measurement Range: Measures sound frequencies from 50Hz to 8.5kHz with A-weighting frequency response, ensuring precise environmental noise analysis. Temperature detection ranges from 14℉ to 122℉, and humidity detection spans 20% to 85% with ±5% accuracy. · Adjustable Detection Speed: Offers three detection speed settings—fast, medium, and slow—allowing you to customize measurements according to your specific monitoring needs. · USB Rechargeable Battery: Built-in 2000mAh 18650 lithium battery provides long-lasting power, rechargeable via the included 10ft USB cable for convenient and efficient charging anywhere. · Portable and Easy to Use: Lightweight ABS construction and user-friendly interface make this meter ideal for tabletop use or wall mounting, providing flexibility for various environments. · Clear Noise Level Indicators: Color-coded noise level indicators (green, orange, red) provide intuitive visual feedback on sound intensity, helping users quickly assess noise pollution levels. · Operating and Storage Conditions: Designed to operate within atmospheric pressures of 12.5 to 15.4 PSI, with a working environment humidity of 10%-80%, and storage temperature range from 14℉ to 140℉ for reliable performance in diverse conditions. Specifications: · Item Type: Decibel Meter · Material: ABS · Display: 11-inch LED screen · Measuring Range: 30-130 dBA · Accuracy: ±1.5 dBA · Frequency Range: 50Hz to 8.5kHz · Frequency Weighting: A · Temperature Detection Range: 14℉ to 122℉ · Humidity Detection Range: 20% to 85% (±5%) · Sampling Time: 0.3 seconds · Battery: Built-in 1 x 18650 2000mAh lithium battery · Charging: 5V DC, 1000mA via USB cable · Atmospheric Pressure Range: 12.5 to 15.4 PSI · Working Humidity: 10%-80% · Storage Temperature: 14℉ to 140℉ Package Includes: · 1 x 4-in-1 Decibel Meter · 1 x 10ft USB Charging Cable This intelligent decibel meter is an essential tool for anyone needing accurate environmental monitoring. Its multifunctional capabilities, high precision, and user-friendly design make it perfect for professionals and everyday users alike, ensuring you stay informed about your surroundings with ease and confidence.