Monitor your indoor environment with precision using this advanced 4-in-1 Sound Level Meter, designed to measure noise levels, temperature, humidity, and display time all on a large, clear screen. Crafted from durable ABS material and powered by a high-capacity 4000mAh lithium battery, this versatile device is perfect for comprehensive environmental monitoring in homes, offices, and industrial settings. Key Features: · **4-in-1 Multifunctional Meter:** Accurately measures sound levels, temperature, humidity, and displays time in a convenient 24-hour format, providing a complete overview of indoor conditions. · **High-Precision Condenser Microphone Sensor:** Equipped with an ultra-thin metal vibrating thin film and a 6mm condenser microphone, delivering fast response and precise noise level readings with an accuracy of ±1.5dB. · **USB Data Storage & Export:** Easily connect the sound level meter to a computer via USB Type-C interface to instantly read, store, and export data to Excel spreadsheets for detailed analysis and record keeping. · **Quick Response & Wide Measurement Range:** Offers rapid measurement with a frequency response of 31.5Hz to 8.5KHz and a noise detection range from 30 to 130 decibels, ensuring reliable monitoring across various environments. · **Alarm Prompt System:** Features both visual indicators and audible beeping alarms to alert users when noise levels exceed preset thresholds, enhancing safety and awareness. · **Long Battery Life & Low Battery Warning:** Powered by a built-in 4000mAh lithium battery with a low battery warning below 3.6V, supporting continuous use and long-term data storage for up to one year with 2-second recording intervals. · **User-Friendly Digital Display:** Large 3-digit digital display with high resolution (0.1dB for readings under 100dB, 1dB for above 100dB) ensures easy reading of measurements. · **Additional Functions:** Includes an alarm clock function and operates efficiently within a temperature range of 0~40℃ and humidity range of 10%~80% RH, suitable for various indoor environments. Specifications: · Material: ABS · Battery Type: Lithium Battery (Included) · Battery Capacity: 4000mAh · Power Supply: DC 5V 1A Type-C USB Interface · Measurement Range: 30~130 dB · Accuracy: ±1.5dB (94dB at 1KHz) · Frequency Response: 31.5Hz~8.5KHz · Frequency Weighting: A weighting · Response Time: Fast · Microphone: 6mm Condenser Microphone · Digital Display: 3 digits · Resolution: 0.1dB (<100dB), 1dB (>100dB) · Operating Temperature: 0~40℃ · Operating Humidity: 10%~80% RH · Storage Function: 2 seconds per record, stores data for up to one year · Alarm Prompt: Sound and display alarm · Time Display: 24-hour format · Temperature Display: 2 digits · Humidity Display: 2 digits · Low Battery Warning: Below 3.6V ±0.1 Package Includes: · 1 x Sound Level Meter This all-in-one sound level meter is an essential tool for anyone needing accurate noise, temperature, and humidity monitoring with data logging capabilities. Its quick response, high accuracy, and user-friendly features make it ideal for environmental assessments, workplace safety, and personal use.