Top Usability Testing Analysis

Texas Instruments TI-84 Plus Graphics Calculator, Black (Renewed)

  • ...ng 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, histograms, regular and modified box-and-whisker plots, and normal probability plots. Advanced statistics features including 9 hypothesis testing functions, 6 confidence interval functions, and one-way analysis of variance..Features: 200+ functions,....
Check Stock

Red Sea Fish Pharm ARE21525 Marine Care Test Kit for Aquarium

  • Regularly testing your water is important to ensure a healthy environment for your fishes..
  • This Aquarium Test strips help monitor water levels of pH, Nitrate, Nitrite, Carbonate, Chlorine, Alkalinity, Iron, Copper,Hardness in salt water fresh water pond reef aquarium, 50 count in 1 bottle..
  • Dip test strips into aquarium water and check colors for fast and accurate results, No private laboratory testing or mail-in analysis required..
  • Helps prevent invisible water problems caused by temperature changes, leftover foods and newly add plants and fishes, Use our Aquarium Water Test Kit for weekly monitoring when water or fish problems appear..
  • Just keep it dry and away from light, they can last for up to 24 months ! 100% Money back guarantee, add it to your cart and start testing water quality right away..
Check Stock

Portable Color Analyzer Digital Precise Colorimeter Color Difference Meter Tester 8mm CIELAB CIELCH Display Mode DE Lab Formula

  • It can be applicable in textile, printing and dyeing, clothing, footwear, leather, chemicals, plastics, film, pigments, paints, inks, metal, photography, toys, and other industry color quality control, color analysis, sample testing, production line testing, also suitable for injection molding, ink, paint, spray and other auxiliary color..
Check Stock

New Professional Commercial Grade 40 QT (Quart) Heavy Gauge Stainless Steel Stock Pot, 3-Ply Clad Base, Induction Ready, with Lid Cover NSF Certified Item

  • Product features capacity 40 quarts (37.8 lt.).
  • NSF is the only third-party testing organization to undertake a complete evaluation of every aspect of a product's development before it can earn our certification.
  • Diameter 16" (40.7 cm) and depth: 12" (30 cm).
  • No other independent testing programs require companies to comply with the strict standards imposed by NSF and its product certification programs. From extensive product testing and material analysis to unannounced plant inspections.
Check Stock

DNA Test for Celiac Gluten Genes and Food Sensitivity; Performed at-Home

  • GET POLYGENIC RISK REPORT FAST: Once we receive the buccal sample and testing form at the processing center, you will receive an email acknowledging the receipt of the buccal sample. The lab will process the buccal sample and you will receive a detailed risked report within 5-8 business days. You will then be on your way to a healthier dietary plan by eliminating your food intolerances with the free assistant of our registered and licensed dietitian..
  • Alcohol tolerance / Caffeine metabolism / Lactose intolerance / Celiac Disease Gluten sensitivity.
  • CONSUMER IS PROVIDED with a comprehensive polygenic risk assessment and free access to our licensed and registered dietitian..
  • BLOOD-FREE SAMPLING: Amazon prime customers love our test because of our simple buccal swab process. MightyDNA takes every precaution and quality assurance protocol to ensure the accuracy of your testing results by have all testing at MightyDNA USA performed by Sanger or next-generation sequencing analysis with Sanger confirmation.
  • You might consider testing when experiencing the following: Digestive problems including abdominal pain, bloating, gas, diarrhea, weight loss.
Check Stock

Capacitance Meters, UYIGAO Digital Battery Powered Capacitan Capacitor Meter Tester 6013L LCD Display

  • It is pocket, convenient operation, accurate numerical reading, low-consumption, driven by battery, and showing numbers in a big LCD..
  • It can be used in testing error testing, numerical analysis, selecting capacitance, measuring unknown capacitance, matching capacitance, and measuring the capacitance of cable, switch and printing electrocircuit..
  • Wide measuring range, covering 9 measuring sections from 0.1pF to 20,00μF that includes nominal value of any capacitance..
  • Firstly, check a 9V battery whether its electric voltage is short that will show signal on the left-upper of the LCD..
Check Stock

ANCEL BA301 6V 12V Car Battery Load Tester Alternator Analyzer Automotive Battery Cranking and Charging System Test Tool for Motorcycle, Car, Boat, Light Truck and More

  • ...accurately measure the Actual cold start current performance of vehicle batteries,healthy state of the battery, and common fault of the vehicle starting system and charging system,BA301 provides you with accurate test results in seconds,can help people to find the find the problem accurately..
  • ✅【One-key Waveform Analysis】The one-click "Waveform" function allows you to plot the voltage changes (current-voltage, maximum voltage, and minimum voltage) during ignition on a graph with one click. For the beginners, the exclusive function helps to track the real-time voltage changing to find the battery issue, for the professional repair store, It's continuous voltage monitoring results can be uploaded to computer then compare it to achieve the analysis of in-car systems..
  • ✅【Display Overall Batteries Data】Except give you the basic battery parameters such as voltage, internal resistance, cold cranking amp, battery health and charge status,Etc. BA 301 battery testers will also give professional advice based on these data then you can decide whether to replace or charge the battery, help you know battery status in advance to prevent possible battery failures. It's much more convenient than driving miles to find the nearby auto repair shop..
Check Stock

Precise Portable Color Analyzer Digital Color Reader with 8mm Aperture and True -Color Display Test Kit, CATUDIY Handheld Colorimeter Monitor Testing Color Difference Meter for Multi-Purpose

  • ✅【Multifunctional Colorimeter】The color detector device widely applies to color quality control, color difference control, color difference analysis, sampling testing and online testing for industries, as well as to the auxiliary color matching tool during the processes as injection, inking, painting and spraying coating etc.
  • ✅【Wide Range of Uses】Handheld colorimeter is perfectly applicable in textile, printing and dyeing, clothing, footwear, leather, chemicals, plastics, film, pigments, paints, inks, metal, photography, toys, food medicine and other various industry.
  • ✅【High Precision & Energy Saving】The color meter monitor is of ultra stable performance and display accuracy up to 0.01, with repeatability accuracy E standard deviation only less than 0.08. Low energy consumption test instrument uses high capacity lithium battery.
  • ✅【Premium Design】Come with large true color display screen, the portable color sensor colorimeter is well designed and features in high precision & stability, easy to operate and read, eco-friendly. CATUDIY promise to resend parts for free within 1-year for damage caused by non-human factors.
  • ✅【Results Printable】The color analysis measurement data displays on the device directly without any software ....
Check Stock

California Mission Model Kit Santa Inez Mission

  • ✅ MILITARY-GRADE ANALYSIS ENCLOSURE - Shielded touchscreen device operation designed for military and law enforcement forensic investigators, as well as mobile device testing and isolation. Fits cell phones, tablets, and similar size devices..
  • ✅ SHIELDED DEVICE OPERATION - Double layer conductive glove for operating devices and touch screens, large interior space, and transparent window for viewing devices..
  • ✅ HIGH-QUALITY CONSTRUCTION - The product's exterior consists of durable ballistic nylon material, large shielded transparent window, agency/department branding pocket, evidence card pocket, and unique serial number for asset tracking. Made in the USA!.
  • ✅ RF SIGNAL BLOCKING - Multiple layers of high-shielding TitanRF Faraday Fabric on all sides. Blocks WiFi (2.4 & 5GHz), Bluetooth, cell signals including 5G networks, GPS, RFID, and radio signals with 60-80dB average attenuation..
  • ✅ USED IN THE FIELD & LAB - The lightweight analysis enclosure can be used in the field or lab. Inside usable dimensions: 17" x 13" x 6". Folds down to 14" x 10" x 2" and comes with carrying case. NeoLok closure system, allowing an operator to effortlessly close the faraday chamber by way of a double roll and strong magnetic seal..
Check Stock

Dorman 751-739 Front Driver Side Power Window Regulator And Motor Assembly Compatible with Select Chevrolet Models (OE FIX)

  • Improved replacement - this motor and regulator assembly features enhancements over the original design for greater reliability.
  • Failure-resistant design - incorporates redesigned window slide block for significantly greater durability than the original equipment design.
  • Simple replacement - no special tools are required to install this regulator assembly.
  • Quality engineering - this part was redesigned for greater durability using finite element analysis, in-door cycle testing and proprietary slide block compression testing.
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool.
Check Stock

InBody H20B Smart Full Body Composition Analyzer Scale - BMI, Body Fat, Muscle Mass - Bluetooth Connected - Soft White

  • Whole Body Assessment: The handle bar electrodes allow us to measure the whole body giving you more accurate and consistent full body composition results while most body fat scales can only measure half of the body & must estimate for the rest..
  • Mobile App: Results automatically sync to your smart device through the InBody App where you can track your progress, set goals, and compare your progress with friends..
  • Advanced Technology: Experience the world of professional body composition analysis right at home. This smart scale utilizes BIA (Bioelectrical Impedance Analysis) technology to measure body composition and help you achieve your health and fitness goals through connected smart home technology..
  • Easy Setup: Pair your H20B to your phone via Bluetooth and start testing in a few minutes..
  • Product is registered with the FDA as a Class II medical device..
Check Stock

Fieldpiece PRH2 Digital Psychomotor

  • Use for walk around testing or in-duct analysis.
  • Twist cap protects sensors when not in use.
Check Stock