Reviews User defined Memory Function

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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Koolertron 60MHz High Precision DDS Signal Generator Counter,Upgraded Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 266MSa/s (60MHz)

  • ..., Partial Sine, CMOS, DC level, Half-wave, Full-Wave, Pos-Ladder, Neg-Ladder, Noise, Exponential Rise, Exponential Fall, Tone, Sine Pulse, Lorentz Pulse, and 60 kinds 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 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)

  • ..., Partial Sine, CMOS, DC level, Half-wave, Full-Wave, Pos-Ladder, Neg-Ladder, Noise, Exponential Rise, Exponential Fall, Tone, sine pulse, Lorentz Pulse, and 60 kinds 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 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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Koolertron 15MHz Embeddable Dual-Channel Function Signal Generator Counter,High Precision DDS Arbitray Waveform Generator Frequency Meter 266MSa/s (15MHz)

  • ..., Partial Sine, CMOS, DC level, Half-wave, Full-Wave, Pos-Ladder, Neg-Ladder, Noise, Exponential Rise, Exponential Fall, Tone, sine pulse, Lorentz Pulse, and 60 kinds 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 100 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. 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.
  • The rear case can be easily disassembled, and there is no interface around the generator for easy installation and embedding into the test bench. The Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research..
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Texas Instruments Ti-84 plus Graphing calculator - Black

  • Real and complex numbers calculated to 14-digit accuracy and displayed with 10 digits plus a 2-digit exponent. Graphs 10 rectangular functions, 6 parametric expressions, 6 polar expressions, and 3 recursively-defined sequences. Up to 10 graphing functions defined, saved, graphed, and analyzed at one time..
  • Sequence graphing mode shows time series plot, cobweb/stair-step plot, and phase plots. User-defined list names. Lists store up to 999 elements. 14 interactive zoom features. Numeric evaluations given in table format for all graphing modes..
  • Interactive analysis of function values, roots, maximums, minimums, integrals, and derivatives. 7 different graph styles for differentiating the look of each graph drawn. Horizontal and vertical split- screen options. Stores up to 10 - 50x50 matrices..
  • Matrix operations including inverse, determinant, transpose, augment, reduced row echelon form, and elementary row operations. Convert matrices to lists and vice-versa. List-based one- and two-variable statistical analysis, including logistic, sinusoidal, median-median, linear, logarithmic, exponential, power, quadratic polynomial, cubic polynomial, and quartic polynomial regression models..
  • 3 statistical plot definitions for scatter plots, xy-line plots, histog....
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Pocket Size Mini Calculators 8 Digit Display Basic Standard Calculators Handheld 8-Digit Primary Calculator for School Students Kids Desktop Home Office 6 Colors 24 Pieces

  • 4 Functions: this simple 4 function calculator has the general function of addition, subtraction, multiplication and division d, suitable for home and office, and its 8-digit screen and memory function let you operate it simply.
  • Appropriate size: mini calculator is about 4.4 x 2.6 x 0.8 inches, small and light, easy to hold, with small space occupation, it suitable for backpack and drawer storage.
  • Sturdy structure: the basic standard calculator has a scientifically designed button, and its good reset function can increase your comfort and bring you a good user experience.
  • Standard design: 8-digit display calculator features modern design, and it designed with automatic key, real key, exit box root key and 4-key independent memory, which are memory plus, memory minus, recall memory and clear memory, which can meet the daily needs of calculation.
  • Clear and sensitive buttons: kids calculator for school have high sensitivity and quick button response, improving your work efficiency.
  • The numbers on the buttons are clear and not easy to fade, portable and practical calculator for mathematics teaching, science courses and more.
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Texas Instruments TI-84 Plus Graphics Calculator, Black (Renewed)

  • Real and complex numbers calculated to 14-digit accuracy and displayed with 10 digits plus a 2-digit exponent. Graphs 10 rectangular functions, 6 parametric expressions, 6 polar expressions, and 3 recursively-defined sequences. Up to 10 graphing functions defined, saved, graphed, and analyzed at one time..
  • Sequence graphing mode shows time series plot, cobweb/stair-step plot, and phase plots. User-defined list names. Lists store up to 999 elements. 14 interactive zoom features. Numeric evaluations given in table format for all graphing modes..
  • Interactive analysis of function values, roots, maximums, minimums, integrals, and derivatives. 7 different graph styles for differentiating the look of each graph drawn. Horizontal and vertical split- screen options. Stores up to 10 - 50x50 matrices..
  • Matrix operations including inverse, determinant, transpose, augment, reduced row echelon form, and elementary row operations. Convert matrices to lists and vice-versa. List-based one- and two-variable statistical analysis, including logistic, sinusoidal, median-median, linear, logarithmic, exponential, power, quadratic polynomial, cubic polynomial, and quartic polynomial regression models..
  • 3 statistical plot definitions for scatter plots, xy-line plots, histog....
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Lumencraft LED Conversion Kit Compatible/Replacement for Maglite Flashlight - 2000 Lumen for 3 D Cell - High Power Upgrade for Maglight with 12x Cree XTE Emitters

  • BREATHE NEW LIFE INTO YOUR MAGLITES: The Lumencraft replacement bulb module gives your trusty old flashlights the make over they deserve. Turns them into a 2000 lumen torch with no tools or modifications required.
  • INCREASED BRIGHTNESS AND BEAM DISTANCE: Over 40x brighter than a standard 45 lumen 3D incandescent Maglite, 12x Cree XT-Es make it easy to see a larger area and a greater distance.  Up to 2000 lumens brightness and 164 meters beam distance. .
  • INCREASED BATTERY LIFE:  Highly efficient LEDs increase run times for up to 130 hours burn time on low mode. .
  • FITS NEWER INCANDESCENT MAGLITES WITH "D" IN THE SERIAL NUMBER:  Including those with MAGNUM STAR BI-PIN BULBS (see product photos for details).  Does *NOT* fit Maglites that are LED from the factory..
  • USER DEFINED MODES:  By default the bulb is pre-programmed to be a simple easy to use 3 mode H,M,L with memory.  However if you want to you can change it to have more or less output modes, and/or a strobe function.  If you don't want additional features no programming is needed (See photos for detailed instructions). .
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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

  • ... 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 function.The settings allow you to enter up to 20volts.
  • 【Lightweght Compact and Portable】With intuitive control panel, you can easy to control.This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research. This is an important tool for both experts and newcomers.
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EPEVER MPPT Charge Controller 40A 12V/24V Upgrade Tracer4210AN + Remote Meter MT50 Monitor + RTS for Solar Panel Charge Controller Regulator with LCD Display (Tracer4210AN + MT50+RTS)

  • ...Work , Max. PV input power:520W @12V battery or 1040W @24V battery. Max PV 100V. Common Negative grounding , Compatible with lead-acid and lithium-ion batteries..
  • 40Amp MPPT Charge Controller Tracking efficiency : ≥99.5%, Max. conversion efficiency 98% ,12V/24V Automatic Work System Voltage Recognition Auto-saving function: two voltage disconnect levels ,Charging power and current limitation function..
  • Support Lead-acid: Sealed (default)/ Gel/ AGM/ Flooded / User (9～17V@12V.
  • 18～34V@ 24V) & Lithium: LiFePO4 (4s/12V.
  • 6s/24V), User (9～34V) & User-defined.Battery temperature compensation function（only for Lead-acid battery) , Overheating power reduction function.
  • MT50 Remote Meter Automatic identify the controller, and display relevant parameter data , Diversified load control modes : Manual Control, Light ON/OFF, Light ON+ Timer, Time Control . RTS Temp sensor acquisition of battery(or controller) temperature for undertaking temperature compensation of control parameters,.
  • 2022 Upgraded version support choose Lithium types by controller buttons directly . You could also contact with vendor(Goland Century) services to get program firmware upgrade file , then you could set old version controller's Lithium types by con....
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