Features: This product is a 3 in 1 decibel noise meter. It use accurate sensors and precise measurement technology to display noise, temperature, and humidity on its LED screen, allowing you to clearly understand the noise level and take effective noise reductions measure. It is small and easy to carry. You can place it anywhere you like without taking up space. Whether it's office, factory workshop, school, or hospital, it can provide you with reliable noise data, create a peaceful and comfortable environment, and protect your living and working space. ABS housing and rechargeable battery, the device offers ±0.5℃ temperature accuracy and mobile connection for trackings historical air quality. Its small size noise meter functionality help users implement effective soundproofing strategies while maintaining continuous air quality supervisions through reliable data logging. Specifications: Material: ABS Noise Measurement Ranges: 30-130dBA Temperature Measurement Ranges:-10℃-50℃ Humidity Measurement Ranges: 20% - 85% Charging:USB C Package Includes: 1Piece Digital Noise Meter note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.