Reviews Frequency Response Curve Tester

AKG Pro Audio K371 Over-Ear, Closed-Back, Foldable Studio Headphones

  • Closed-Back, Oval Over-Ear Design Offers Superior Isolation, Improved Low-Frequency Response, Ergonomic Fit.
  • Largest-In-Class, Titanium-Coated 50Mm Transducers With Pure Ofc Voice Coils.
  • Engineered To Match Akg’S Reference Response Curve Acoustic Target For Accurate, Neutral Sound. Features: Best-In-Class Frequency Response: 5 Hz To 40 Khz, Best-In-Class Sensitivity: 114 Db And Optimal 32-Ohm Impedance To Supports A Range Of Sound Sources.
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Dental Willis Bite Gauge Stainless Steel Premium Instruments

  • ♥♥【Application】:The dental pulp vitality tester is an instrument that uses a machine to produce pulse current and stimulates the tooth nerve, then records the response value of the tooth nerve to the electrical stimulation, so as to judge the vitality of the tooth nerve,which ensure the accuracy of doctor's judgement on the patient's pulp vitality..
  • ♥♥【Adjustable Frequency】:To press the speed control button to choose three preset speed mode (high-mid-low speed),while the different indicator lights will be on..
  • ♥♥【Data description】：The maximum stimulus----80.Between 0-40, the patient feels ache and anesthesia, it is the alive teeth nerve.Between 40-80,with above-mentioned reaction,part of teeth nerve dead. 80, no above-mentioned reaction, dead teeth nerve..
  • ♥♥【About Testing】:To increase a gentle pulsed stimulus at a rate,If the patient indicates perception, simply release the button. The stimulus stops immediately, but the numbers remain on the tester for about 3 minutes.It is easy to read..
  • ♥♥【Economical】:This pulp tester is battery-operated, Standard 9-Volt batteries, the device turns itself off three minutes later after operation(No wasted batteries.).
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Spark Plug Tester Dual Holes Engine Ignition Coil Tester 500-6000rpm Working Frequency, Car Spark Plug Tester Tool with Protective Cover, Automotive Spark Plug Tester for 12V Gasoline Vehicles

  • ...aneous Dual-hole Testing】The automotive spark plug tester has two test holes, which can perform dual-hole simultaneous testing. By comparing the intensity of the test spark, an accurate judgment can be made on the quality of the spark plug, and the spark plug can work normally..
  • 【Spark Plug Tester with Operating Frequency from 500 to 6000rpm】The working frequency of the automotive spark plug tester is adjustable, and the range can reach 500 to 6000rpm. The higher the set frequency, the stronger the spark intensity. It can be adjusted as needed..
  • 【Time-Saving and Efficient Spark Plug Tester】The working principle of the car spark plug tester is to test the performance of the spark plug at the same time by simulating engine work, which is more time-saving and efficient. Suitable for spark plugs of most 12V gasoline cars..
  • 【Plug-and-Play Spark Plug Tester Tool】Put the spark plug in the test hole, close the protective cover, connect the power supply and adjust the working frequency, and is equipped with a high-voltage indicator. You can easily observe the spark plug test status through the protective cover..
  • 【Ignition Coil Tester with Protective Cover】The automotive spark tester has a special protective cover design. Cover the protective cov....
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AKG Pro Audio K371 Over-Ear, Closed-Back, Foldable Studio Headphones Bundle with Knox Gear Professional Headphone Case for Inward-Folding Headphones (2 Items)

  • Bundle Includes: AKG Pro Audio K371 Over-Ear Closed-Back Foldable Studio Headphones (Black), and Knox Gear Professional Headphone Case for Inward-Folding Studio Monitor Headphones.
  • Premium Drivers: 50mm Drivers largest-in-class, titanium-coated 50mm transducers with pure OFC.
  • Design: Oval over-ear design offers superior isolation, improved low-frequency response, and an ergonomic fit.
  • AKG Reference Response Acoustics: Engineered to match AKG’s Reference Response curve acoustic target for accurate, neutral sound and extended frequency response (5Hz-40kHz).
  • Luxury Feel: Calibrated headbands with slow-retention oval foam pads offer a precise fit, superior comfort and earcups swivel 90 degrees for single-ear monitoring.
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Spark Plug Tester Dual Holes Spark Tester Working Frequency 500-6000rpm Spark Plug Tool for 12V Gasoline Vehicles Ignition Coil Tester with A Protective Cover, Spark Plug Not Included

  • 【Spark Plug Tester For Small Engines Test Spark Plug Performance】The spark tester mainly tests the performance of the spark plug by simulating the ignition of the car, thereby deciding whether to replace the spark plug..
  • 【Dual Holes Spark Plug Tester】In order to be able to see more clearly whether the performance of the spark plug is good, the spark plug tester has a dual-hole test function. Just put a brand-new spark plug and a spark plug to be tested into the test hole respectively, and the performance of the spark plug can be tested quickly and accurately. Test hole inner size: 10mm..
  • 【Adjustable Working Frequency Spark Tester】The working frequency of the spark tester small engine is 500-6000rpm. Its working frequency can be adjusted through the knob, which is very convenient..
  • 【Ignition Tester For 12V Gasoline Vehicles Car Spark Plugs】This spark plug tester is suitable for most 12v gasoline car spark plugs. Cannot be used for lawn mowers and chainsaws. If you are not sure whether it is suitable for your spark plug, please contact us before buying..
  • 【Coil Tester With A Protective Cover】In order to make the process of use safer, the spark plug tester comes with a transparent protective cover..
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WANLUTECH OTDR Tester CCTV Tester, 1310/1550nm OTDR Fiber Optic Tester 8'' Touchscreen Built-in DMM OPM OLS VFL Event Map Support TVI CVI AHD IP CVBS Camera Test PoE/HDMI in/RJ45 Cable TDR Test

  • ✅【All-in-one OTDR Tester】WANLUTECH MT-8000 combines all necessary fiber optic testing in one handheld device.This OTDR tester includes Optical Time Domain Reflectometer (OTDR:1310nm+1550nm,28dB/26dB,max test distance can up to 110km), Visual Fault Locator (VFL:max test distance 8km), Optical Power Meter (OPM:measurement range -70~+10 dBm), Light Source (CW,270 Hz, 330 Hz, 1 kHz and 2 kHz),Digital Multimeter(DMM) , Optical Loss Test, RJ45 cable test, Event Map, etc..
  • ✅【Professional OTDR Fiber Optic Tester】WANLUTECH OTDR tester uses automatic testing by default, just click to start testing after connecting into the fiber, there is no complicated parameter setting.
  • professional technicians can set the test range, pulse width and other parameters before testing, which will get more accurate curve results.Warning function could prevent OTDR module from being damaged by optical signal in fiber..
  • ✅【Parameters】WANLUTECH multifunctional Single Mode OTDR has 8'' retina touch screen, 2048*1536 resolution. OTDR fiber tester is powered by 7.4V/7000mAh Li-polymer batter with long working time.Interface type:FC-PC.1310nm/1550nm Testing Wavelength and 28....
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Rockville DPM10B 10' 400w Powered Active 3-Way Studio Monitor Speaker Full Range, Black, 10 inch

  • ...esign With Tri-Amped:  40 Watts for highs, 40 Watts for Mids, and 120 watts for the lows..
  • This speaker has 3 amps built in. It has a separate amp for the lows, mids, and highs. This technology creates the most crisp and clear sound imaginable..
  • We filter out unwanted sounds from each speaker, and create a flattened frequency curve for the ultimate true sound reproduction. Midfield monitor with the optimal operating distance of 3 feet to -14 feet..
  • The front-firing port is built to the perfect spec to enhance the sound and keep a very flat frequency curve. Curved Front Bezel Design Eliminates Standing Wave Distortion . Enclosure is made of top quality high-grade MDF wood..
  • The enclosure is 0.5" thick around while the front board of it is a full 1" thick to give you the ultimate best sound quality!. Tweeter Waveguide design optimizes directivity and phase response providing amazing detail and imaging..
  • Ferro Fluid Enhanced 1.5" Neodymium Silk Dome Tweeter. Our tweeter produces the softest most realistic highs on the market that will not hurt your ears. They are loud, clear, and musical. Tweeter has 1" voice coil diameter..
  • 10" Glass Aramid Composite Woofer cone for excellent transient response and accurate low and mid sound reproduction. 4" Glass Aramid C....
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DIYmall HJ Digital RC Servo Tester ESC Consistency Tester Speed Controller for RC Helicopter Airplane Car Motor Throttle Display

  • 1 X HJ Digital Servo Tester / ESC Consistency Tester.
  • 4CH tester servo: It can control 4 servos at the same time.
  • 50H analog servo signal cycle 20us frequency 50Hz,125H digital the steering gear a signal cycle 8us frequency 125Hz.
  • 250H Digital Servo signal cycle 4us frequency 250Hz.
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Salmue Tattoo Machine Cartridge Pen, Rotary Tattoo Gun Permanent Machines, Japan Motor With Rotating Tattoo Machine Coloring(01#)

  • High quality: Made of high quality aluminum alloy, it is durable and easy to use. Ultra light, easy to control and handle.
  • TATTOO MACHINE: It can adjust the tension according to the need to control the intensity and the frequency, the secant, the fog, the color, the image, the totem, the old and the new tradition can control different styles..
  • Stable and easy to use: equipped with high power engines, strong and stable force, running for ten hours, suitable for all brands.
  • High Performance: This machine uses an imported micromotor. The working frequency curve of the motor is smooth and there are no jerky vibrations. In the current process, the response curve can converge rapidly, thus obtaining the elasticity effect..
  • Elegant and practical design: The latest eccentric ten-slot disc guarantees a long service life. Suitable for contours and shadows, easy to control, with incoming calls and reception.
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Spark Plug Tester 0 to 6000rpm Adjustable Spark Tester with Two Spark Plug Socket 100-240v with Protective Cover Ignition Tester Heat Resistance Spark Tester Automotive Tools for 12mm Spark Plug

  • ...f the two spark plugs,judge the performance and ignition intensity of the spark plugs,and replace the broken spark plugs in time.The design of the protective cover can prevent you from the risk of electric shock during the test,which effectively guarantees your safety during the operation..
  • 【0~6000rpm Working Frequency Adjustable & More Accurate Data】The automotive tools has a wide adjustment range of working frequency.By operating the rotary switch,you can adjust the working frequency in the range of 0~6000rpm,the higher the set frequency,the stronger the spark intensity.Spark plug tester can also simulate the work of the engine,restore the authenticity of the car rotate speed,save time and high efficiency,and the data is more accurate,which can better test the spark plug..
  • 【High-Quality ABS Material With Impact Resistance & Heat Resistance】Ignition tester is made of high-quality ABS material,which has the characteristics of impact resistance and heat resistance.It can provide you with long-term service and reduce the cost caused by frequent tool replacement..
  • 【Plug And Play & Intuitively Display Spark Plug Status】Spark tester automotive is easy to operate, and you can start using it after connecting the adapter. The spark plug tester ....
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