Decibel Meter 13" Sound Decibel Meter Display Time Temperature Humidity, Wall Mounted and Desktop Sound Level Meter with Buzzer Alarm Icons Indicator, Noise Meter for Classroom, Studio, Home, etc.

["✅【13-inches LED Screen】DANOPLUS 13 INCHES LED Screen sound meter displays Decibel Level(30-130dB), Time(AM/PM), Temperature(degree C/degree F) Humidity(0-100%RH) and brightness adjustable","✅【Buzzer Alarm】The decibel meter sound level reader is equipped with buzzer alarm function with adjustable decibel THRESOLD, and you may open or DISABLE the buzzer alarm according to your need","✅【Face Icons Indicator】The decibel meters is automatically switch the face icons according to the different decibel level,【Green Face】Less than 60dB;【Yellow Face】60~85dB;【Red Face】More than 85dB","✅【High Accuracy】The db meter has large measuring Range: 30-130dB with high accuracy: +/-1dB, all of the readings of decibel level, Temperature and Humidity is fully calibrated from the factory which ensure high accuracy and long-term usage","✅【User-Fridendly】The sound meter comes with large capacity lithium battery(last for 10hours in fully charged), suggest to keep charging if keep it working all the time; 9.8 feet(300 cm) charging cord, no worry the cable is not length enough"]