Check the listing for details. Decibel Meter Sound Level Reader LED Time Temperature Humidity Noise Meter. Condition: New. Listed at 50.99 USD. Description:【5 IN 1 MULTIFUNCTIONAL DECIBEL MONITOR】5 in 1 LED Decibel Meter, Wall Mounted Sound Level Meter 30-130dB Range, 11 Inch Large LED Display, Noise +Calendar+ Time + Temperature + Humidity Meter for Classroom, Studio, Home, Factory 【11 INCH LARGE LED DISPLAY】This sound and noise meter is designed with 11 inch LED Color screen, the brightness is adjustable, so that you can effortlessly read it throughout the day. Not only can the screen brightness be adjusted, you can also adjust the speed of detection. A great tool for checking, monitoring or controlling the sound level of any environments. 【WIDE APPLICATIONS】This large display decibel meter can be mounted on the wall or placed on the table, it's an ideal noise meter to test the sound level in classroom, studio room, traffic routes, factories, construction site, home, offices, etc. It is powered by 1000mAh battery and comes with a 10ft long USB cable charging, you can put it anywhere you want to place it, charging anywhere, anytime. 【Easy to use】 This decibel meter is powered by a built-in 2000-mAh lithium battery and comes with a 10-foot USB flash drive. This smart decibel meter can be used directly. Click "▲" to increase the brightness, click "▼" to decrease the brightness, click "M" to adjust the detection speed. There are three courses: fast, medium and slow. Double-click "M" to set the time 【High accuracy】 The measuring range is 30.130 dB, accuracy: ±1.5 dB, frequency response range. 50Hz~8.5KHz; Moisture range: 20~85%, accuracy: ±5%; Temperature range. -10℃-50℃ , accuracy: ±5%. It's more sensitive, accurate and stable. Specifications: Colour： white Material: ABS Measuring range: 30-130dB Detection temperature: -10℃-50℃ Temperature UNIT: ℉/℃ Relative humidity: 20% to 85% Charging: 5V DC,1000mAh Battery: 3.7 V, 2000 mAh Item size: 271*181*41.9mm Item weight: 554gPRODUCT SPECIFICATIONSDisplay MethodLED ScreenAtmospheric Pressure12.5 PSI-15.4PSISampling Time1.5 SecondsTemperature Range-10℃-50℃Storage Temperature-10℃-60℃Relative Humidity20%-85%Humidity Range20%-85%Charging1000 mAh 5VBattery2000 mAh Lithium lonProduct Weight554gProduct Size271*181*41.9mmConcentration Unit DecibeldBAMeasuring Range30-130dBAAccuracy±1.5Frequency Range50Hz-8.5kHzFrequency WeightingAResolution0.1dBA Noise simulation bar description Quiet/ComfortableLoudExtremely LoudDecibel Reading