Best User defined Memory Function

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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QTech EZ-60 Coin Counting Scale (60lb Capacity) - Displays US Coin Counts & Dollar Value

  • Fast, One-Button operation – just dump and count! 10X faster than a mechnical counter..
  • Ideal for Laundromats, Car Washes, Casinos, Vending Routes, Fairs, Arcades, and Amusement Centers..
  • 6 Preset Denomination Keys: Penny, Nickel, Dime, Quarter, Fifty-cent piece, and Dollar Coins. Accumulation Memory maintains a running subtotal of individual counts..
  • 3 Programmable Keys allow for user-defined coin or token denominations for quick and easy recall..
  • Three large, high contrast LCD windows display the Coin Denomination, Quantity, and Total Value (NOTE: does not display weight).
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3D CAD Modeler Parametric Design Software Printing Windows Mac PC FREECAD

  • FreeCAD is multi-platform. It runs and behaves exactly the same way on Windows and macOS platforms..
  • FreeCAD also runs as a command line application, with low memory footprint. In command line mode, FreeCAD runs without its interface, but with all its geometry tools. It can be, for example, used as server to produce content for other applications..
  • Parametric associative document objects: All objects in a FreeCAD document can be defined by parameters. Those parameters can be modified on the fly, and recomputed anytime. The relationship between objects is also stored, so modifying one object also modifies its dependent objects..
  • Built-in scripting framework: FreeCAD features a built-in Python interpreter, and an API that covers almost any part of the application, the interface, the geometry and the representation of this geometry in the 3D viewer. The interpreter can run single commands up to complex scripts, in fact entire modules can even be programmed completely in Python..
  • User interaction mirroring on the console: Everything the user does in the FreeCAD interface executes Python code, which can be printed on the console and recorded in macros..
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Analog Desktop Scanner

  • Menu Driven Programming with Context Sensitive Help - Each menu item provides a few lines of help text that provide assistance with programming and using the scanner.
  • Scan List-functionality allows you to arrange, group and scan objects according to your preference. Memory Backup - Frequencies remain stored in memory for an extended time even without batteries..
  • Free-Form Memory Organization - Allocation of memory dynamically and efficiently as it is needed. This differs from low cost and older scanners that had memory organized in rigid and wasteful memory banks.
  • Skywarn Storm Spotter Function - Instant access to frequencies used by storm spotter networks. Multi-System Trunking. Tune - Find new and unlisted frequencies starting from a specified frequency.
  • Digital AGC - Instantly compensates for low user audio levels that are common on digital systems.
  • Scans most common trunked radio system signaling formats, including Motorola, EDACS, LTR and P25 trunked radio networks. Both talkgroup and individual call monitoring are supported.
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WonVon DDS Function Generator, 60MHz Dual-Channel Signal Generator 0.01-100MHz Arbitrary Waveform Pulse FY6900-60M Generator Function Signal Generator

  • FY6900 series Dual-channel Function / Arbitrary waveform generator is a set of Function Signal Generator, Arbitrary Waveform Generator, Pulse Generator, Analog / Digital modulator, VCO, Sweep, Counters and Frequency Meter and other functions in a high Performance, cost-effective, multi-function signal generator. Abundant shortcut keys and graphical user interface simplifies every operation..
  • The standard 3-pin power plug increases the grounding protection and effectively eliminates the leakage current on the BNC terminal.2.4 inch TFT Color LCD with 320×240 resolution, displaying parameters and graphics of the two channels at the same time.The instrument uses 14-bit high-speed D/A converter chip (5Vpp output quantization error is less than 1mV), 250MSa/s sample rate, 14bits vertical resolution.
  • Can output up to 97 groups of functions / arbitrary waveform, contains 33 groups of preset waveforms and 64 groups of user-defined waveforms. Preset waveforms: Sine, Square (Duty Cycle adjustable), Pulse (Pulse width and cycle time can be set accurately), Triangle/Ramp, CMOS(0~10V), Four channels TTL, Exponential Rise, Exponential Fall, Noise, ECG, DC etc..
  • Enable to store 64 arbitrary waveform data files, each one of waveform storage depth 8192 points * 14bit....
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Tachometer, FITNATE Digital Tachometer RPM Meter, 2.5~99,999 RPM Accuracy with Batteries Included, Digital Non-Contact Handheld Laser Photo Tachometer

  • ACCURATE SPEED MEASUREMENT: The rotational speed of this digital tachometer is 2.5RPM-99999 RPM and resolution ratio is 0.1 RPM. The degree of accuracy can reach up to +/- (0.05%+1)..
  • STABLE, SAFE & DURABLE: The tachometer is possessed of non-contact velocity measurement with high precision and fast measurement, which is proved to be reliable, stable and most importantly, it is much safer to use..
  • MEMORY FUNCTION: It is equipped with data memory function. The memory value: maximum value/ minimum value/average value ( every 10 sets of data). In this way, it can record 50 sets of data because of the automatic detection function..
  • USER-FRIENDLY FEATURES: It comes with a super large clear LCD screen for easy digital reading and a low battery reminder function. In addition, you can take it with you everywhere due to the portable design. The button is way easy to operate..
  • WIDE APPLICABILITY: This portable tachometer has a wide application and it can be extensively used in diversified manufacturing industries, such as televisions, fans, paper-making, plastic, chemical fiber, washing machines, autos, airplanes and steamships etc..
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