Check the listing for details. Digital Sound Level Meter Temperature Humidity Meter 30~130db Decibel Tester. Condition: New. Listed at 78.99 USD. SNDWAY Digital 4 in 1 Sound Level Meter Temperature Humidity Meter 30~130db Decibel Meter Audio Measuring Instrument Desk Noise Meter This instrument is mainly used for measuring environmental noise, noise engineering, quality control and health prevention and treatment, such as factory, office, traffic road, audio, home and air conditioner, refrigerator and other occasions. Features: 1,Accuracy:±1.5dB(standard sound source 94dB@1KHz) 2,Measuring range:30-130dB 3,Frequency respond range:31.5Hz-8.5KHz 4,Frequency Weighting:A Weighting(Ambient noise) 5,Response:Fast 6,Connecting computer with USB cable, user can download records, collect samples and print chart and data. Specifications Measuring Range:30-130dB Accuracy:±1.5dB(standard sound source 94dB@1KHz) Frequency respond range:31.5Hz-8.5KHz Frequency Weighting:A Weighting(Ambient noise) Response:Fast Microphone: 6mm condenser microphone Digital Display:3 digits Alarm (sound+Display:yes Alarm clock:yes Time Display:24-hour system Temperature Display:2digits Humidity Display:2digits Storage Function:2s/unit, store for 1 year Connecting Computer:Communicate with the computer via wire Power Supply:DC5V 1A Type-C USB port Low battery warning:less than 3.6V ± 0.1 Li-ion capacity:4000mAh 3.7V Operating Temperature and Humidity :0~40°C, 10%~80%RH Storage Temperature and Humidity:-10~60°C, 10%~70%RH Dimension:151x48x86mm Product weight:281g Package contents 1*Desk Sound Level Meter 1*USB Cable 1*User Manual SNDWAY Indoor Environment Detector Real time monitoring and refreshing data of noise, temperature, and humidity. The noise meter has the following features: A Weighting/Data storage and transmission/4 in 1/Sound and light alarm/Real time monitoring/Fast response Common noise in daily life Various noises can be heard in daily life, affecting normal rest, school, and causing mental breakdown. Appendix A: Volume Reference Condenser Microphone Sensor, Resolution 0.1dB 4 in 1 indoor detection Comprehensive detection of noise, temperature, humidity, and time (with alarm function) USB data storage and transmission Connecting computer with USB cable, user can download records, collect samples and print chart and data. Fast response,Accuracy:±1.5dB Sound and light alarm prompt When giving an alarm, the indicator light flashes, accompanied by a buzzing alarm sound 4000mAh Li-ion battery, fast charging