Reviews High stability Frequency Counter

Rockville Quad UHF 4 Wireless Handheld Microphone System w/LCD Display (rwm4401uh)

  • Rockville rwm4401uh UHF wireless (4) handheld microphone system with LCD display.
  • High performance wireless hand held microphone system. Includes rwm4401uh transmitter with (4) hand Held, high sensitivity, unidirectional, wireless cardioid microphones. Professional rack mount design with LCD displays. Color coded microphones. Rack mountable rugged metal housing mic receiver. Comfortable ergonomic composite microphone construction. Low power consumption for longer battery life.
  • Featuring a dual filter design to limit feedback and interference. Individual microphone volume Control. Color coded microphones. Comfortable ergonomic composite microphone construction. Low power consumption for longer battery life. Ultra signal stability minimizes audio artifacts. Operating range: 300´ – 400´(indoor), 250´ – 350´(outdoor). channel: four channel. Frequency range: 467-490.
  • Frequency stability: 0.005%. Modulation Mode: UHF. Frequency response: 50hz-15khz(3 dB). dynamic range: 110dB. S/N: 90dB. T.H.D: < 0.1%(1Khz). audio output jack: XLR balance & 1/4" Unbalanced. Power voltage: ac110v-240v 50/60Hz. Operating temperature: 14°f-122°f. Mic battery Operating Time: up to 10 hours.
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RF Explorer and Handheld Spectrum Analyzer model WSUB1G 240-960 MHz

  • Std. SMA 50 ohms connector, wideband Nagoya NA-773 telescopic antenna incl. Ampl. resolution: 0.5dBm.
  • Frequency stability and accuracy (typical): +-10ppm.
  • Amplitude stability and accuracy (typical): +-3dBm.
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UNI-T UTD2102CEX+ High-Precision 100MHz Desktop Digital Storage Oscilloscope for Laboratory and Electronic Repair Waveform Tester

  • ...ary Waveform Generator UTG962. Dual channels. Ch1 - Ch2 combining. Output waveform: Sine, square, pulse, ramp, noise, DC, arbitrary. Modulation types: AM, FM, PM, FSK, Line, Log. 24 groups non-volatile arbitrary waveform storage..
  • Sampling rate of 200MSa/S. TTL level signal compatible 6 digits high accuracy built-in frequency counter. Frequency counter with output range: 1μHz-60MHz. Full-band resolution of 1μHz. DDS (direct digital synthesis) method applied. 14 bits vertical resolution. Support frequency scanning and output..
  • One of the best ready-to-use function generators. Value pack includes: UTG962 function generator, power adapter (USA standard), USB cable power cord, BNC cable, BNC cable with alligator clips, paper manual, eManual, and 24/7 free support by UNI-T Direct..
  • Budget friendly and intuitive generator for hobbyists, novices, students, small labs, basic projects, ham radio alignment, pro audio measurements. Learn and update skills, work with audio gear, DC offsets, wow & flutter test, amplitudes, receiver test, circuit test, filter troubleshooting, refurbish turntable..
  • As a global brand, UNI-T supply all kinds of testing meters and instruments i.e. oscilloscope, electromagnetic pulse generator, rife machine, tone generator, thermal camer....
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Schumann Generator, 7.83HZ Small Pulse Generator, Sound Improvement Rechargeable Schumann Resonance Pulse Generator, High Accuracy for Bedroom Audiovisual Space

  • Schumann waves 7.83HZ very low frequency generator features high accuracy and stability with MSDS certificate..
  • High stable frequency acquisition parts include high stability pulse chip, accuracy correction capacitance and accuracy multi-loop adjustable resistor..
  • And high quality batteries is with overcharged, overvoltage, overcurrent protection. There is almost no voltage ripple in the voltage supply..
  • With work toggle switch, easy to use. Schumann waves can be applied to HIFI or sleep..
  • Rechargeable model, small and portable, comes with a 20CM charging cable. Newly optimized circuit designs and gold‑plated launching circuit..
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RF Explorer and Handheld Spectrum Analyzer model WSUB1G 240 - 960 MHz With Aluminium Case

  • Std. SMA 50 ohms connector, wideband Nagoya NA-773 telescopic antenna incl. Ampl. resolution: 0.5dBm.
  • Frequency stability and accuracy (typical): +-10ppm.
  • Amplitude stability and accuracy (typical): +-3dBm.
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RF Explorer - ISM Combo and Handheld Spectrum Analyzer 240-960 MHz and 2.35 – 2.55 GHz

  • Frequency band: 240-960 MHz and 2.35–2.55 GHz.
  • 2.4GHz RF Generator amplitude: -30dBm to +1dBm.
  • Frequency stability and accuracy (typical): +-10ppm.
  • Amplitude stability and accuracy (typical): +-3dBm.
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UNI-T UTG962 Function Generator Arbitrary Waveform Generator Kit Frequency Generator RF Signal Generator 60MHz 2 Channel 200MSa/s 14 Bits Dual-Channel

  • ...ary Waveform Generator UTG962. Dual channels. Ch1 - Ch2 combining. Output waveform: Sine, square, pulse, ramp, noise, DC, arbitrary. Modulation types: AM, FM, PM, FSK, Line, Log. 24 groups non-volatile arbitrary waveform storage..
  • Sampling rate of 200MSa/S. TTL level signal compatible 6 digits high accuracy built-in frequency counter. Frequency counter with output range: 1μHz-60MHz. Full-band resolution of 1μHz. DDS (direct digital synthesis) method applied. 14 bits vertical resolution. Support frequency scanning and output..
  • One of the best ready-to-use function generators. Value pack includes: UTG962 function generator, power adapter (USA standard), USB cable power cord, BNC cable, BNC cable with alligator clips, paper manual, eManual, and 24/7 free support by UNI-T Direct..
  • Budget friendly and intuitive generator for hobbyists, novices, students, small labs, basic projects, ham radio alignment, pro audio measurements. Learn and update skills, work with audio gear, DC offsets, wow & flutter test, amplitudes, receiver test, circuit test, filter troubleshooting, refurbish turntable..
  • As a global brand, UNI-T supply all kinds of testing meters and instruments i.e. oscilloscope, electromagnetic pulse generator, rife machine, tone generator, thermal camer....
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Professional Upgraded DDS Signal Generator Counter, Seesii 60MHz LCD Display High Precision 200MSa/s Dual-Channel Arbitray Waveform Function Generator Frequency Meter

  • ...pts large scale FPGA integrated circuit and high speed MCU microprocessor. The internal circuit adopts active crystal oscillator as benchmark. So the signal stability is greatly strengthened..
  • 【Storage And Custom】 You can store 99 groups instrument state parameters set by the user, can be called up to Reproduce. Frequency output of Sine wave can be up to 60MHz. 200MSa/s sampling rate. It has 60 positions for saving user-defined waveform. In addition, it has a very good software package that allows you to create your own waves and frequency combinations. After you save them, you can disconnect the unit from the computer and use them for any applications you wish..
  • 【High Precise】 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, Sawtooth wave, Pulse wave, white noise, user-defined waveform etc. each channel can be independently set the parameters.Duty cycle of each channel can be adjusted separately. Precision can be 0.1%..
  • 【Frequency Meter】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 func....
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Leopard Bar Stools, Modern PU Leather Adjustable Swivel Classic Bar Stool with Back, Set of 3 (Black)

  • ✔【STURDY & DURABLE】-The furniture includes 2 bar stools.Smooth and beautiful, brown Technology Fabric barstools are more durable and dirt resistant, and black spray painted metal frames make these counter height bar stools more durable and easy to clean.With integrated footrest and non-slip pads,to make the bar stool more stable to use..
  • ✔【COMFORTABLE】-The chair and back of the bar stools are made of high quality fabric and very soft foam cushions, the barstools make people feel very comfortable.And counter height bar stools' backrest line design conforms to the ergonomic principle.The footrest design also allows you to put your feet in a comfortable position, allowing people to enjoy the brown bar stool design..
  • ✔【Easy to assemble】-We have prepared these bar stools with simple and easy to understand instructions and high quality hardware, so you can assemble the counter height bar stools with backs quickly and easily.It takes less than 15 minutes to complete the assembly of the brown bar stool..
  • ✔【Widely Applicatioin】- The leather barstools can hold up to 250 pounds. The excellent appearance and structural design make the chair ideal for indoor use in bars, kitchen islands, dining rooms, living rooms, entertainment areas, lounge....
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