Reviews Audio Level Meter

Extech Personal Noise Dosimeter and USB Interface with Sound Calibrator

  • Calibrates and verifies Sound Level Meter operation.
  • For use on Sound Level Meters with 0.5″ or 1.0″ microphones.
  • Measures frequency weighted noise exposure and peak (C, Z) sound level.
  • Datalog’s up to 999,999 readings when used as a sound level meter with sampling times between 1 second and 24 hours.
  • Sound level mode: displays sound level, min/max, time-averaged sound level (Leq), peak, and sound exposure level (SEL).
  • Adjustable Criterion Level, Exchange Rate and Threshold.
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VIZIO SB3621n-E8B 2.1 Soundbar Home Speaker, Black (Manufacturer Renewed)

  • Audio Quality Enjoy 100 dB of room filling, crystal clear sound with less than 1% total harmonic distortion. (Sound Pressure Level measured using pink noise at 1 meter, C-weighted. Total Harmonic Distortion calculated as electrical measurement of amplifier distortion.).
  • Wireless Subwoofer Wireless subwoofer adds booming bass..
  • Bluetooth Built-in Bluetooth lets you stream music from your mobile device in high quality..
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Depusheng DX8 Professional Mixer Sound Board Console 8 Channel Desk System Interface Digital USB MP3 Input 48V Phantom Power Stereo DJ Studio FX Steel Chassis,Black Bluetooth USB Audio Mixer for PC

  • Multi Devices Compatibility : USB/Flash Reader /MP3 or Bluetooth device are very easy to connect this mixer to Mix & record.
  • Built in built in controls provide friendly experience to play/pause, skip tracks and switch between modes.
  • Bluetooth Wireless Audio Streaming : Cable free music streaming ability directly to the consoles.
  • Mix all kinds of devices as smart phone to this audio mixer. Very easy to wirelessly stream all music tunes to the mixing board from Spotify or Pandora.
  • Ultra-thin and Rugged Chassis: With only 1.4 inches thin design, sealed rotary controls to resist dust, great experience of touching to use this mixer. This compact mixer provides total dynamic control, is great for high quality on stage performance,premium quality crystal clear studio level quality audio playback.
  • MIC + Line Inputs : Supporting XLR and unbalanced 1/4″ plug with +48V phantom buttons, highly accurate LED peak level indicator,10-Segment Stereo Output Level METER and ultra musical 3 band EQ on all channels.
  • Ultra low noise, high headroom mixer with super easy functionality for professional vocal and instrumental sound.
  • This analog mixer provides accurate, crisp and clear sound quality. The extra clean sounding effect makes it ideal for live mix in occasions like l....
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Depensheng DX12 DJ Sound Controller Interface w/ USB Drive for Computer Recording 12-Channel Studio Audio Mixer - XLR Microphone Jack, 48V Power, RCA Input/Output for Professional and Beginners

  • Multi Devices Compatibility：This portable 12-channel DJ mixer has Bluetooth for wireless streaming and use it as an input to mix signal with other input channels. It works with IOS, Android, Tablet and MP3 Player.
  • RECORD AND CONNECT TO PC: This personal mixer has a USB soundcard and audio interface to record and connect to MAC or PC and it has universal digital audio file compatibility. Can be used by beginners or studio professional applications.
  • 12-CHANNEL DJ Mixer: The mixer is great for multiple devices connectivity because it has 12 channels, one XLR microphone and 1/4’’ input each channel. Plus 2 Pair XLR outputs，2 1/4’’ (L/R) outputs, Each pairs RCA (L/R) inputs and outputs, 2 pairs 1/4’’ mono + stereo,1/4’’ Send + Return and 1/4’’ headphone jack.
  • High Accurate Led Lights and Power Supply:Delicate LED peak level indicator, and ultra musical 3 band EQ on all channels.
  • For reliable power source, this DJ mixer comes with a +48V Phantom power supply. Includes a 3=pin power adapter cable and the stereo output level meter is 10-Segment (-24, -19, -14, -11, -8, -5, 0, +5, +8, +11).
  • Ultra-thin and Rugged Chassis: With only 1.6 inches thin design, sealed rotary controls to resist dust, great experience of touching to use this mixer.....
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Decibel Meter Sound Level Reader 30-130dB A Hand-held Sound Noise Meter with Backlight Alarm Digital Noise Meter Decibel Monitoring Tester Calibrated Audio Noise Volume Measuring Instrument

  • Sound db meter calibrated at factory, noise measurement range from 30 - 130dBA, accuracy: ±1.5dB, resolution: 0.1dB. Disable the automatic off function, sound meter can continuously measure noise value.
  • Sound meter features backlight alarm, large LCD display, maximum/ minimum noise monitor, data hold function, auto/manual power off, disable the auto off function, sound level meter can continuously measure noise value, battery indication.
  • Decibel meter is ideal for neighbors noise complaints, job-site and noise pollution monitoring.
  • Portable sound level meter is light and compact design, easy to carry with you and operate with one-hand.
  • Noise meter comes with 3 pcs AAA batteries, a wind-proof sponge ball and user manual. The decibel meter has been adjusted properly, it can be used immediately after the battery being installed..
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Decibel Meter, CURCONSA SPL Meter, Portable Sound Level Meter, 30dB to 130dB, LCD Display, can be Used in Homes, Factories and Streets（Blue）

  • ❤【Widely Used】 A decibel meter is an instrument used to measure ambient sound levels. Decibel meter can be used in homes, factories, workshops, schools, residential areas, offices, streets, hotels, hospitals, laboratories, theaters and sound systems, the scope of application is very wide and an indispensable tool in life.
  • ❤【High Precision】 The measuring range of the sound level meter is 30dB to 130dB with fast response speed and stable and reliable performance. Sound level meter is a high-precision noise meter with an accuracy of ± 2.0 dB. Real-time monitoring can give you accurate data on the sound level in the area.
  • ❤【A / C Double-weighting Measurement】 The A-weighting simulates the frequency characteristics of low-intensity human ear noise, which is suitable for the detection of ambient noise. The C-weighting simulates the frequency properties of high-intensity noises of the human ear, which are suitable for the sound pressure analysis of machine motors and machines. More professional measurement methods provide users with a more perfect user experience.
  • ❤【Fast and Slow Response Rate Conversion】 The spl meter has the function of converting the fast and slow response rate. The fast response rate uses a time constant of 125 mil....
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PH Meter, TDS PPM Meter, Soil PH Tester, PH/EC Digital Kit, 3 Pack

  • ...ow) +1 TDS & EC Meter (blue)+1soil tester kit (green). Total is 3 PCS..
  • Functions - The digital pH pen is equipped with auto temperature compensation function. TDS meter has lock & auto shut off function(Kindly remind : This meter can't test sea water.). Pushing the button, it can display the data about water purity level on the screen in PPM (parts per million). The soil meter can test soil pH to help you control the PH level in soil. (Note: this tester is designed for testing soil ONLY.).
  • Accurate & reliable - these testers can test quickly and accurately within ±0.01 pH. It only takes a few seconds to show accurate and stable reading for the result to appear on screen..
  • Easy to use - ph tester and TDS meter have sensitive electrode sensor ,simply press "ON". It only takes a few seconds for your result to appear the data on screen. Soil test kit just need to insert the probes into the soil about 4-6 inches, and wait for about 10 seconds to read the intuitive data. No battery required..
  • Widely application - these meters are designed small and convenient. PH meter and TD&EC meter can test pH balance, ideal for testing drinking water, swimming pools, aquarium, spas, hydroponics, food and more. Soil tester is applicable to plants, garden, lawn and farm su....
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YINMIK 2nd Generation pH TDS Tester Combo with Horizontal Display Digital pH Meter Professional PPM Meter for Hydroponics Swimming Pool Aquarium Household Drinking Homebrew

  • [Fully Meet the Needs of Hydroponic Growers] pH Meter: Monitoring the pH level of the hydroponic nutrient solution to ensure it can be maximum accessed by the plants. TDS & EC Meter: Keep tracking of the amount of nutrients in your solution to prevent it from being too high or too low and hindering the healthy growth of plants..
  • [Helpful for Aquarist] pH Meter: Keep the balance of pH value of fish tank, drastic fluctuations in pH value can seriously damage the survival environment of fish. TDS & EC Meter: Monitor the amount of ionic salts in the tank to remind fish keepers when to change the water to balance the ratio of various substances..
  • [Friendly for Pool Owners] pH Meter: Keep the pool water at the right pH level, which is friendly to swimmers' skin and eyes. TDS & EC Meter: Keep the TDS value of the pool water appropriate can extend the life of the pool equipment..
  • [2nd Generation pH TDS Meter Combo] Tired of using 1st generation yellow ones with small vertical reading display? The screen of YINMIK 2nd pH TDS meter combo is designed for horizontal display, when you check the pH TDS or EC value, you can always get temperature reading simultaneously, which makes your job easier and more comfortable.
  • [What You Get] YK-P01B pH Meter *1, YK-E01B T....
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48V Battery Fuel Gauge Indicator, Golf Cart, Yamaha,EZGO, Fork Lifts,Club Car,LED Battery Indicator Meter Gauge

  • 【48V Battery Fuel Gauge】The 48 Volt Led Battery Meter compatible with Golf Cart Club Car EZGO Yamaha 48 Volt LED Battery Gauge Meter, Works with 48V Lead-Acid Batteries in Golf Carts, Forklifts, Trucks, Scooters and More..
  • 【LED Battery Indicator Meter】10 segment LED Bar Graph display, 10% per segment：3 color LED display,different light displays different battery level visually.
  • LED flash for low charge&high charge warning.
  • 【Note】The second LED from the left flashes as a warning that the batteries voltage has been discharged to 80% of their capacity.It is strongly recommended to recharge the batteries when you get to the 3rd Yellow LED, this is a safety precaution to avoid dead batteries.
  • 【 Installation Notes】Make sure your "C" terminal is either connected to the Battery "+" or a Key switch, Meter will scan from full to empty then shuts off .Meter will stay full position while first is connected with batteries and indicate the actual battery level after 155 seconds..
  • 【 Battery Indicator】The 48V Battery Indicator is made of high quality ABS material, waterproof, heat resistant, reliable performance.Displayed with 10 segment LED bar graph (1 Red, 2 Yellow and 7 Green LED), different light displays different battery level..
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