Reviews Teaching Instrument

Koolertron Upgraded 15MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (15MHz)

  • Arbitrary Waveform Generator adopts large scale FPGA integrated circuit and high-speed MCU microprocessor. The internal circuit adopts the active crystal oscillator as the benchmark. So the signal stability is greatly strengthened..
  • Using Dual-channel DDS signal and TTL electric level output to generate precise, stable, low distortion output signal. includes Sine wave, Square wave, Triangle wave, Saw toothwave, Pulse wave, white noise, user-defined waveform etc. each channel can be independently set the parameters..
  • With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function..
  • Storage feature: You can store 99 groups instrument state parameters set by the user, can be called up to Reproduce.The frequency output of Sine wave can be up to 15MHz. 200MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits.
  • This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research..
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Studio Z 5.1in Wooden Cabasa with Stainless Steel Beaded Chain and Cylinder for Band / Music Latin Percussion Instrument

  • Ideal for classroom musical teaching, musical games, music band accompaniment, and much more..
  • A cabasa is a popular hand percussion instrument with a thin wooden handle and a cylindrical body covered in loops of steel ball chain..
  • Great tool for parents and, teachers to teach kids and promote the gift of music..
  • 7" Length ergonomically shaped wooden handle.
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Mr.Power 25 Note Wood Xylophone G5- G7 Wooden Glockenspiel with Mallet, Case for School Student Band Professional Players

  • Material: High quality wooden. The surface is smooth and the edges are polished without burrs, so won't hurt your hands..
  • Compared to the metal glockenspiel, the xylophone has a deeper sound..
  • Great gift for friends, children, student and music lover..
  • Application: Suitable for students and teachers to use as a teaching musical instrument, and it can also be used in a profi band..
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15 Minutes Hourglass Metal Glass Rotating Sand Timer with Wooden Base for Gifts Toy Home Office Desktop Decor

  • 【Multi -Purpose】：Great use when cooking, playing board games or as a teaching instrument..
  • 【Beautiful Decoration】：A beautiful decoration on your desktop for living room, bedroom, office..
  • 【Flowing Sand】：The sand flowing slowly, you can enjoy the beautiful time and the wonderful memories..
  • 【Time assistant】: help you manage your time effectively and achieve your goals in time..
  • 【Perfect Gift】：The sand glass can be serve as a friend gift, New Year gift, holiday gift..
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30 Notes Foldable Glockenspiel Xylophone, Percussion Instrument Kit for Adults and Kids- Includes 2 Mallets and Carrying Bag

  • ... of music and coordination, allowing them to experience the joy of music..
  • ♬Multifunctional Xylophone: The protable xylophone is suitable for home and school music initiation, each key is precisely tuned to help children learn scales and can be played anywhere. Suitable for students and teachers as a teaching instrument, but also can be used for professional bands..
  • ♬Foldable And Portable Design- The foldable design allows you to store the clock instrument in a small space when it is not in use. We also include a carrying bag for easier portability and transportation. Allowing you to attend concerts, events or live performances whenever you want..
  • ♬ A Great Gift For Beginners: The percussion instruments has a wide range of scales that allow you to play a variety of scores and is perfect for adults or children who are just starting to use the piano. Perfect for birthdays, Christmas, housewarming, graduation gifts, etc..
  • ♬ Package Included – Our 30 notes of the percussion glockenspiel come with a carrying bag and bell mallets and mallet. Its open dimensions are 22.6 inches (L) X 13.6 inches (W)..
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Koolertron 60MHz High Precision DDS Signal Generator Counter,Upgraded Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 266MSa/s (60MHz)

  • ...r defined waveform etc. each channel can be independently set the parameters..
  • With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function..
  • Storage feature: You can store 100 groups instrument state parameters set by the user, can be called up to Reproduce. Frequency output of Sine wave can be up to 60MHz. 266MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits.
  • This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research..
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Koolertron 15MHz High Precision DDS Signal Generator Counter,Upgraded Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 266MSa/s (15MHz)

  • ...r defined waveform etc. each channel can be independently set the parameters..
  • With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function..
  • Storage feature: You can store 100 groups instrument state parameters set by the user, can be called up to Reproduce. Frequency output of Sine wave can be up to 15MHz. 266MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits.
  • This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research..
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RCYAGO Dissolved Oxygen Meter with Electrode Filling Fluid

  • Dissolved oxygen meter is a precision instrument for measuring dissolved oxygen and temperature. The dissolved oxygen probe is a thin film with a polarographic sensor and a thermistor for temperature measurement and temperature compensation. The permeable membrane separates the measured solution from the sensing electrode but allows oxygen to pass through the membrane to react, and the concentration can be measured..
  • Dissolved oxygen refers to the concentration of molecular oxygen dissolved in water, generally expressed in mg/L (ppm) and saturation percentage (%), which is the percentage of dissolved oxygen in 1L of water. The oxygen concentration of our dissolved oxygen meter is 0.0-40.0mg/L, most of the range of dissolved oxygen meters on the market is 0.0-20mg/L. When measuring and calibrating, needn't open the protective cover of the electrode, just put the electrode in the solution for measurement..
  • Detachable probe, easy to replace, equipped with 6 probe protective covers and anaerobic water calibration powder. The film inside the protective cover cannot be taken apart. After using it for a period of time, the test value is inaccurate and the calibration is still inaccurate, and the membrane sleeve needs to be replaced..
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Eastrock 6 inch Metal Steel Cow Bells Noise Makers Hand Percussion Cowbell with Stick for Drum Set

  • ...the drum stick with the other hand and hit different parts of it to produce different sounds. For the convenience of playing, you can also add this cowbell to the drum kit, match it with various brackets, attach a connecting clip, hang it on the cymbal stand or clip it on the kick drum, etc. It is a good percussion instrument for the band to play.
  • Beautiful sound- Cowbells are very interesting to play, with bright timbre and good overtones. They can produce a crisp sound with a single tap. The sounds of cowbells of different sizes are also different. It is very easy to master, suitable for beginners or professionals. Musicians with percussion instruments.
  • Widely used- Percussion instrument cowbell with drum sticks is widely used, it can be used in concerts, bands, family gatherings, competitive sports, school teaching and other occasions. It can quickly attract people's attention and create an atmosphere of excitement and joy.
  • High-quality service- Eastrack cowbell instruments value the experience of each customer, and we offer 1 year warranty for cowbells with manufacturing defects.
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