ReviewsMedium Voltage Frequency Changer

DeLonghi Stainless Steel Burr Coffee Grinder with Grind Selector and Quantity Control

Produces a uniform ground texture for the most consistent results with the burr grinding wheel.
Choose the perfect grind setting from course, to medium, to fine.
Grind 4-12-cup of coffee with quantity control knob.
once grinding is complete, it shuts off automatically.
Easy access to ground coffee with removable, transparent ground coffee container.
Stylish and durable stainless steel exterior.

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PWM Pulse Frequency Generator, Icstation Signal Generator Module DC 3.3V-30V Function Generator 5-30mA 1-Channel 1Hz-150kHz PWM Pulse Frequency Duty Cycle Square Wave LCD Display

⇝PWM Pulse Frequency module work voltage range is DC 3.3V-30V.
the frequency range is 1Hz-150kHz/1Hz-15kHz.
⇝PWM frequency supports 2 modes:normal mode & accurate mode.Regular mode with 1% duty cycle steps.Precision mode with 0.1% duty cycle steps..
PWM output can set frequency & duty cycle separately.
duty cycle upper and lower bounds adjustable.
⇝Square wave signal generator, generating square wave signal for experimental development, generating square wave signal that controls the motor driver, and generating adjustable pulses for MCU Dimmer.
⇝There is no output voltage control. The output voltage is the same as the input voltage. That can be easily changed by adding a simple potentiometer..

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AD8317 1M-10GHz 60dB RF Power Meter Logarithmic RF Signal Power Detector Controller for Amplifier

EASY TO USE :The logarithmic power meter adopts AD8317 chip design, which is convenient to use, small in size, high in efficiency, easy to install, stable and reliable, and is used for radio frequency signal power detection..
DETECTABLE :The logarithmic power meter has strict quality control and quality assurance. It can detect the power of the radio frequency signal from -55dBm to 0dBm, and convert the radio frequency signal into a DC voltage output..
DYNAMIC RANGE :The greater the amplitude or power of the radio frequency signal, the higher the output voltage, and the output voltage is proportional to the logarithm of the input signal amplitude, thereby expanding the dynamic range of the detection signal to 55dB..
WIDELY USED :The logarithmic power meter adopts advanced technology and exquisite craftsmanship, and has been improved to improve durability. Logarithmic detector can be widely used in radio frequency signal detection, signal power measurement, and environmental field strength detection..

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(2) JBL Pro JRX215 15″ 2000w PA/DJ Speakers+Powered 12-Channel Mixer+Stands

...rofessional Passive PA/DJ Speakers 8 Ohm JRX 215, (1) Rockville RPM109 12 Channel 4800w Powered Mixer, 7 Band EQ, Effects, USB, 48V, (1) Pair of Rockville Tripod Speaker/Lighting Stands+(2) 20 Foot 1/4″-SpeakOn Cables.
Features of JRX215:, JRX215 15″ Two-Way Sound Reinforcement Loudspeaker System, JBL 15 in low frequency driver with a 64 mm (2.5 in) diameter edge wound ribbon voice coil, JBL 2414H-C 25 mm (1 in) polymer diaphragm compression driver, Advanced network topology crossover design, High-voltage capacitors and inductors with massive cores and heavy gauge wire, Progressive Transition high frequency waveguide, 19 mm (.75 in) MDF (Medium Density Fiberboard) enclosure.
Details:, Power Rating : 250 W / 1000W, Frequency Range (-10 dB) : 41 Hz – 18 kHz, Frequency Response (±3 dB) : 59 Hz – 13 kHz, Sensitivity (1w/1m) : 99 dB SPL, Nominal Impedance : 8 ohms, Recommended Amplifier Power : 250 W to 500 W into 8 ohms, Maximum SPL: 129 dB, Nominal Dispersion : 90º x 50º, Crossover Frequency : 2.2 kHz, Dimensions (H x W x D) : 699 mm x 460 mm x 432 mm (27.5 in x 18.1 in x 17 in), Weight : 27.4 kg (60.5 lb).
Rockville RPM109 12 Channel 4800w Powered Mixer, 7 Band EQ, Effects, USB, 48V , RMS Power Output:, …..600w x 2 @ 4 Ohm, …..450w x 2 @ ....

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hygger Upgrade Aquarium Water Changer Kit, Semi-Automatic Fish Tank Gravel Cleaner, with 25 FT Water Hose, Flow Control Valve

【Quickly Change Water 】just use a long flexible hose and 2 flow valves, you can change the aquarium water more quicker and easier, no need electric, it's semi-automatic water changer suitable for medium and large fish tanks. No spill, no mess and no heavy lifting for changing dirty water and adding clean water.
【Aquarium Gravel Cleaning 】When you use this water changer to suck away aquarium dirty water, you can move the gravel tube to cleaning the gravel or install the duckbilled on to clean fish feces. With the pressure from the water, the gravels and sands can be sucked up to the gravel tube then to vacuum out the debris in gravel.
【Non-electric & Quiet】this aquarium water changer is not electric, no noise no disturb to your fish or plants. All you need to do is to control the 2 valves and open the faucet. With 2 orange built-in control valves on the water changer, to turn it on or off you just need to rotate the valve by 1/4 turn up or down. To add clean water in to aquarium, please remember to keep the water flow assembly valve closed, so when you open the faucet the water will flow into the hose.
【3 sizes available】choose the size according to the distance from your fish tank to the sink faucet, flexible water hose length available:....

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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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ATO 3 hp 2.2kW 10A VFD, Single Phase 120V Input, 1phase/3phase 220V Output Variable Frequency Drive Motor Control

ATO 3 hp (2.2 kW) VFD, single phase 110v/120v input, single phase or three phase 220v output variable frequency drive, specially designed for 120v power supply.
【voltage&frequency】Input voltage : 1 phase 120V AC ±15%.
Output voltage: 1 phase or 3 phase 220V AC ±15%.
【APPLICATION】: ATO 110V VFD Can be widely applied to drive the AC motor, such as fans, pumps, power tools, etc..
【TIPS】: Choose a VFD base on motor rated current: VFD output current ≥ motor rated current.
【CUSTOMER FIRST】: If you have no experience in driving a VFD, be sure to refer to the instructions before operating a VFD.If you are not sure about the size or have any issue about the product or service, please don't hesitate to email us. We will answer you within 12h.

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Fluid Audio F8S: 8-inch Active Studio subwoofer, 200W Class D

5-inch woofer unit powered by a high-power amplifier (rated output: 50 W).
rigid and supple fiberglass diaphragm in the woofer unit.
variable cross over frequency adjuster (60 Hz to 150 Hz).
Phase changer for tuning according to your environment.
Stand-by function to reduce unnecessary power consumption (ON/OFF).
Sealed type speaker to reproduce music sources faithfully and to reduce incidental sound.

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Broadband Pre-tensioning T-Piece Bias Tee High Frequency Inductance Amplifier Module for Optical Modulation Drive

【Isolating capacitance】: isolating dc to prevent dc voltage from leaking to subsequent circuits or test instruments.
【Firmly Structure】 consists of high frequency inductors and capacitors with ultra-broadband, near idealization and no resonant point..
【Application】: Broadband amplifier, optical fiber communication, optical modulation drive, other test and measurement applications.
【High frequency inductance】: isolate ac information to prevent high frequency signals from leaking into the power supply system..
【Size】Working frequency: 10MHZ-6GHz--Insertion loss 003c 1.2 dB--Operating Voltage: DC1-50V--Normal working current: 003c 0.5A.

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KIMISS Forward Reversing Switch, 220V/380V 40A Tire Changer Machine Motor Forward Reverse Switch Turn Table Pedal Switch

【Wide Application】The tire machine switch can be used in many tire changers. Precision machined to ensure high sensitivity, quick response, easy to control. Give you a comfortable touch feeling and a pleasant experience..
【Manual Operation】 Manual operation forward reverse switch without automatic reset and spring is designed for tire changer foot pedal. This is the perfect replacement for the old one..
【Humanized Design】Voltage: 220V single-phase and three-phase 380V Tested before sale to ensure trouble-free installation and performance, stable performance and high reliability..
【High Performance】Stable characteristic, high reliability,The distance between the center of the two fixing screws is 1.5inch, perfect fit in..
【High Quality Material】Forward reversing switch made of high quality plastic material, fire resistant, not brittle, anti-scratch and will not damage wheels. 100% Brand New Aftermarket Tire Changer Switch with Premium Quality..

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APC Smart-UPS RT SURTD5000RMXLT3U 3500W/5000VA 208V 3U/Tower UPS System

Output Power Capacity: 3500 Watts / 5000 VA Max Configurable Power: 3500 Watts / 5000 VA Nominal Output Voltage: 208 V Output Voltage Note:....
Output Voltage Distortion: Less than 3% Output Frequency (sync to mains): 50/60 Hz +/- 3 Hz user adjustable +/- 0.1 Crest Factor: Upto 3:1 Waveform....
Nominal Input Voltage: 208 V Input Frequency: 50/60 Hz +/-5Hz (auto sensing) Input Connections: NEMA L6-30P Cord Length: 3.05 meters Input voltage....
Battery Type: Maintenance-free sealed Lead-Acid battery with suspended electrolyte - leakproof Included Battery Modules: 2 Typical recharge time: 2.5....
Interface Ports: Smart-Slot Pre-Installed SmartSlot Cards: AP9619 Control panel: LED status display with load and battery bar-graphs and On Line - On....

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