ReviewsLow Power Frequency Counter

Pair Rockville APM5W 5.25' 2-Way 250W Powered USB Studio Monitor Speakers+Pads

  • Studio reference monitors for critical audio production listening in small spaces.
  • Super-near-field design puts the sweet spot right at your ears on a typical desk.
  • DESKTOP/SHELF switch adapts response for superior sound from any speaker placement.
  • Extended frequency response from 45 Hz - 20 kHz delivers surprising bass response *Advanced digital crossover and careful time alignment for precise stereo imaging.
  • 4 class D power amps and 50W RMS for punchy low end and impressive volume.Total output power (both speakers)- 70W (peak) - 50W RMS.Low frequency output power (single speaker)- 18W RMS. High frequency output power (single speaker)- 7W RMS.
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AD831 High Frequency Transducer RF Mixer Module 500MHz Bandwidth Mixing Down Mixing Dual Balanced Mixer Single Chip Radio Frequency Converter -10dBm

  • The AD831 is a low distortion, wide dynamic range, single chip mixer, suitable for HF and VHF Receiver RF-IF frequency, second mixer in DMR base station, DC-baseband conversion, quadrature modulation and demodulation, and ultrasound imaging, frequency move detection and other applications.
  • The AD831 has provide +24 dBm third-order intermodulation intercept point, realization of -10 dBm LO power, without the need for a high power LO drive.
  • There is no corresponding shielding and isolation problems, therefore, compared with the passive mixer to improve the performance of the system, reduce the system cost.
  • The mixer is designed as a single power supply, RF, IF and LO ports with DC isolation capacitor, easy to use.
  • The amplifier has low DC offset characteristics, so it can be used in DC-baseband frequency conversion and quadrature amplitude demodulation.
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Discover It - iProtect 3 Band RF Anti-Spy Counter Surveillance Radio Frequency Bug Detector - Detect Listening Devices, Hidden Cameras, GPS, WiFi, Bluetooth, GSM, 3G, 4G/LTE, 2.4, and 5.8Ghz Signals

  • "THE DISCOVER IT - iPROTECT DD1216 - 3 BAND RF ANTI-SPY COUNTER SURVEILLANCE RADIO FREQUENCY BUG DETECTOR HAS GIVEN ME PIECE OF MIND!" - Did you know that countless families, businessmen & women and corporations have relied upon the Discover It - iProtect 3 Band RF Anti-Spy Counter Surveillance Radio Frequency Bug Detector to ensure their MAXIMUM level of privacy and security? Get ready to experience your greatest level of personal privacy yet!.
  • THREE BANDS OF DETECTION - Did you know that the detection frequency range of the Discover It - iProtect 3 Band RF Anti-Spy Counter Surveillance Detector has been split into 3 parts, each displayed by a separate bargraph: "VHF/UHF 50-700 MHz", "Mobile and wireless 700 MHz – 3 GHz" and "Microwave and wireless 3-12 GHz". Allowing the operator to understand what type of signal is detected, to detect several signals simultaneously and to sustain the ability of detection near sources of interference.
  • HAVE AMAZING PROFESSIONAL 5 STAR RESULTS WITHOUT QUESTIONING THE DETECTION RESULTS - Do you want to have amazing 5 STAR detection results each and every time you scan your home, car, office & conference board room or hotel room? Its never been easier to sweep and detect hidden bugs, hidden cameras or malicious RF sign....
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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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7.83HZ Pulse Generator 5V 0.1A Schumann Wave Ultra-low Frequency Audio Resonator for Helping Sleep

  • ✔ MINI USB PORT POWER SUPPLY -- Adopted of Mini Usb port power supply, typically+5V 0.1A,and comes with USB cable.
  • ✔ LOW STATIC CONSUMPTION -- Imported ultra-low static power consumption main control IC,to make the waveform more stable.
  • ✔ 7.83HZ PULSE SQUARE WAVE -- Output 7.83HZ pulse square wave, whose duty cycle is 50%. Frequency can be fine-tuned for correction.
  • ✔ ULTRA-LOW SCHUMANN WAVE -- This product is Schumann wave 7.83HZ very low frequency generator, features high accuracy and stability.
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BaoFeng Pofung GT-3TP Mark-III+Speaker Tri-Power 8/4/1W Two-Way Radio with Speaker Mic Included

  • GT-3TP Mark-III has High / Med / Low Power Settings Broad (Wide) / Narrowband (Narrow), High power / low power (5W / 1W), selectable. Selectable....
  • Frequency Range: 65-108 MHz (Only commercial FM radio reception), VHF: 136-174 MHz (Rx/TX), UHF: 400-520 MHz (Rx/TX)..
  • Note: Factory defaults frequency is 140-150/430-440MHz (8W Output), please reset the radio to reach 136-174/400-470MHz or program it to reach....
  • 128 Channels 50 CTCSS and 104 DCS, Function Busy Channel Lock "BCLO", Function "VOX" (Voice Operated Transmission), "OFFSET" (frequency offset for....
  • Optimal SQL Setting, Optimal Modulation of TX/RX Power Tube, True 8W Output Power, Up to 11KM effective talking range. Extra speaker mic included.....
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KWD808-I Stimulator Machine 50Hz Electric Acupuncture Stimulator Massager Machine 6 Channels Outputs Patch Massager Care Device 100-240V Pulse Electrotherapy Acupuncture Instrument

  • ✅【SPECIFICATIONS】Output pulse circuit: 6 outputs. Input power: .
  • The fuse is slow-blow at 0.5A. Output pulse frequency: 1.2Hz~55Hz, the error range is ±30% continuously adjustable. Output pulse width: 0.6±0.15ms. Power supply voltage scope: AC 110~240V, 50Hz.
  • DC 9V+5%, 9V-10%. Atmospheric pressure range: 500hpa to 1060 hpa. Size: 21.7cmx16.7cmx7.5cm, weight: 1390g..
  • ✅【ADJUSTABLE FREQUENCY INTENSITY】The frequency and intensity can be adjusted. Adjustable sensitivity probe point locator. 6 outputs, plus 1 detection socket..
  • ✅【5 KINDS OF PULSE WAVES】There are 5 kinds of pulse waves to choose from: continuous wave, dense dispersive wave, discontinuous wave, ripple wave, breathing wave, with a wide range of functions..
  • ✅【OPERATION OUTPUT PROTECTION】The device outputs pulses, and the treatment is very safe and efficient. A wave with low voltage, low frequency, and the same frequency range as the human body. It has the characteristics of low voltage, low frequency, two-way, etc. The operation output protection device is particularly safe to operate and safe to use..
  • ✅【PROFESSIONAL SERVICE】If you have any questions or if you receive unqualified or damaged products, please contact us timely and we will handle them immediat....
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PreSonus Studio 1810c USB-C Audio Interface 18-in/8-out USB-C Audio Interface with 4 Xmax Preamps

  • ...sonus Eris E3. 5 3. 5" Powered Studio Monitors Speakers with Acoustic Tuning + Pair of Rockville RVSM1 Heavy Duty Near-Field Studio Monitor Stands w/ Adjustable Height for Use in any Studio Environment.
  • Pair PreSonus Eris E3. 5 3. 5" Powered Studio Monitors Speakers with Acoustic Tuning. 3. 5-inch (89 mm) Kevlar low-frequency transducer. 1-inch (25 mm), ultra-low-mass, silk-dome, high-frequency transducer. Rear-firing acoustic port for superior bass-frequency reproduction. Optimized, resonance-suppressing internal bracing. High- and low-frequency tuning controls. Front-panel Volume control for speakers and headphone amplifier..
  • 50 watt (25W/side), Class AB bi-amplification. RF interference, output current limiting, over-temperature, transient, and subsonic protection. Amplifier “soft start” feature eliminates popping on power-up. Internal power supply with IEC connector. Power switch with on/off LED. Balanced ¼-inch TRS, unbalanced 1/8-inch stereo, and RCA inputs. Integrated stereo headphone amplifier with front-panel 1/8-inch output. Protection: . RF Interference. Output-Current Limiting. Over-Temperature. Turn-On/Off.
  • Specifications: Inputs: (1) Stereo 1/8" , (2) Balanced 1/4" TRS, (2) Unbalanced RCA . Frequency Response: 80 Hz - 20 kHz. Crossove....
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Yamaha DXR12MKII, 12\ 1100W Powered Speaker Cabinet

  • ...igh power 15" woofer with 3" KSV voice coil provides incredibly deep bass and acoustic power. A microphone/line selectable input gives you the flexibility of plugging in a mixer signal, microphone, keyboard, or your guitar..
  • LINK OUT connection via combo balanced XLR - 1/4" TRS preamp output for multi speaker setup. Frequency Response: 45Hz-20KHz. Maximum SPL @1w/1m: 96dB peak..
  • High-power 2-way pro sound stage monitor speaker system for live sound and playback applications. Wedge shaped enclosure provides the perfect angle for stage monitoring use..
  • Compact and light weight system delivers distortion free sound even at extreme SPL. Great power to weight ratio. Linear Class AB amplifier technology: high power, transparent sonic performance..
  • Internal switch-mode power supply for low distortion audio with superior transient response. State-of-the-art 1.75" titanium diaphragm compression horn driver for crystal clear high frequency reproduction..
  • Ultra-wide dispersion, large-format Elliptical wave guide horn. Custom Molded Steel Grill. Ergonomically shaped handle for easy carrying and setup. Aviation Grade Black Carpet. Rubber Isolating Feet..
  • Mic / Line level control. Built-In 3 band Equalizer allows you to control High, Mid, and Low frequencies to attain y....
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Rigol DG822-25 MHz Function/Arbitrary Waveform Generator, 2 Channel

  • Unique SiFi II (Signal Fidelity II) technology: generate the arbitrary waveforms point by point.
  • jitter of all the output waveforms (including Sine, Pulse, etc.) as low as 200 ps.
  • 16 Mpts memory depth per channel for arbitrary waveforms.
  • Standard dual-channel with the same performance, equivalent to two independent signal sources.
  • Built-in high-order harmonic generator (at most 8-order harmonics).
  • Built-in 7 digits/s, 240 MHz bandwidth full featured frequency counter.
  • Up to 160 built-in arbitrary waveforms, covering the common signals in engineering application, medical electronics, auto electronics, math processing, and other various fi elds.
  • Sample rate up to 250 MSa/s, vertical resolution 16 bits.
  • Arbitrary waveform sequence editing function available.
  • arbitrary waveforms also can be generated through the PC software.
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2 JBL Pro JRX215 15 2000w Professional Passive PA/DJ Speakers 8 Ohm JRX 215

  • Features: JRX215 15" Two-Way Sound Reinforcement Loudspeaker System. JBI 15 in low frequency driver with a 64 mm (2.5 in) diameter edge wound ribbon....
  • High-voltage capacitors and inductors with massive cores and heavy gauge wire. Progressive Transition high frequency waveguide. 19 mm (.75 in) MDF....
  • Non-resonant, all-steel handles. 18-gauge hexagon perforated, steel grille Dual-angle pole-mount socket allows the speaker to tilt 10. Details: Power....
  • Nominal Impedance : 8 ohms. Recommended Amplifier Power : 250 W to 500 W into 8 ohms. Maximum SPL: 129 dB. Nominal Dispersion : 90 x 50. Crossover....
  • High Frequency Driver : JBI 2414H-C , 1" exit compression driver mounted on Progressive TransitionWave guide. Low Frequency Driver : JBI M115-8A.....
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