Kaiweets HT118A Digital Multimeter Trms 6000 Counts Voltmeter Auto-Ranging Fast Accurately Measures Voltage Current Amp Resistance Diodes Continuity Duty-Cycle Capacitance Temperature







- WIDE APPLICATIONS - KAIWEETS HT118A Multimeter measures up to 600V AC/DC voltage, 10A AC/DC current and 60 MOhms resistance, electrical tester also tests temperature, capacitance, frequency, duty-cycle, wire on-off, and test diodes and continuity.
- EASY OPERATION - Switch the dial to the function you need, and the LED lights on the jacks will shine accordingly. To plug in the leads is easy. Autoranging saves you the hassle of having to know which range of value. Large 2.9 LCD backlight display, easy-to-read digits offer a 6000-count resolution.
- MULTI-FUNCTION - Non-contact voltage testing and Live function with sound and light alarm. Flashlight on the back ensures easy use in dimly lit places. Min/Max/Average to record signal fluctuations. Stable kickstand, Pen slot on the back, Low battery prompt, Data retention, Auto power-off.
- SAFETY FIRST - IEC Rated CAT III 1000V, CAT IV 600V, CE, RoHS certified. Anti-Burn with double ceramic fuse and thermistor protection circuit. High Voltage Protection is active on all ranges. Double insulated unit. Silicone protective case prevents it from falling damage.
- AFTERSALES - KAIWEETS provides a 36-Month after-sale service, lifetime technical support. Please feel free to contact us if you have any concerns. Package includes multimeter, test leads, thermocouple, batteries and user manual. ( Note - Please take off the cap before using the leads)
Astroai ASIMT5000A-JP1 Digital Multimeter And Analyzer Trms 6000 Counts Volt Meter Ohmmeter Auto-Ranging Tester
Ranked #7 in Best Bosch Multimeters Of 2024
Ranked #15 in Best Capacitance Meters Of 2024









- Versatile Digital Multimeter - Accurately measures AC/DC Current, AC/DC Voltage, Capacitance, Frequency, Duty Cycle, Resistance, Diode, Continuity and Temperature.
- Thoughtful Design - Support Data Hold, Large LCD Backlit Screen, Auto Shut-off and Kickstand make the process of measurements easier. Professional level is reflected in some features include Auto-Ranging capability, and True RMS for measuring both AC Current and Voltage.
- Suitable For Many Occasions - This Multimeter is a golden partner to help to troubleshoot a variety of automotive and household electrical problems safely and accurately.
- Ensure Safety - Double ceramic fuse is anti-burn and protects from overloading, and it will be more secure and reliable; F400mA/600V and F10A/600V explosion-proof ceramic fuse tubes can protect the multimeter effectively.
- Additional Tips - Please take off the cap before using the test leads. Check the manual for more usage information.
- Professional Technical Support Team - If you have any questions about the product, feel free to contact us! Our California-based support team will respond within 24 hours.
Klein Tools MM420 Digital Multimeter, Auto-Ranging Trms Multimeter














- VERSATILE FUNCTIONALITY - Measures AC/DC voltage up to 600V, 10A AC/DC current, 50M resistance; additional features include continuity, temperature, capacitance, frequency/duty cycle and diode test
- LEAD-ALERT PROTECTION - LEDs on the meter illuminate to indicate proper test lead placement, enhancing accuracy and safety during measurements
- BACKLIT DISPLAY - LCD shows clear readings in low-light conditions for enhanced visibility
- ACCURATE MEASUREMENTS - Auto-ranging and True Root Mean Squared (TRMS) technology provides precise and accurate measurements
- CONVENIENT FEATURES - Test lead holders on the back of the meter, kickstand and optional magnetic hanger (Cat. Nos. 69445 or 69417) for hands-free operation
- DURABLE CONSTRUCTION - Built to withstand a 6.6-Foot (2 m) drop, ideal for use in basic and controlled electromagnetic environments such as residential, business, HVAC and light-industrial locations
- COMPLETE PACKAGE - Includes test leads with CAT III/CAT IV safety caps, thermocouple, instructions, and 2 x AAA batteries
Astroai MT33D Digital Multimeter Tester 2000 Counts
Ranked #4 in Best Bosch Multimeters Of 2024
Ranked #5 in Best Automotive Multimeters Of 2024








- Versatile Digital Multimeter - Accurately measures AC/DC Voltage, DC Current, Resistance, and Diode. This Multimeter is a really useful tool for solving industrial and household electrical issues. Suitable for Household Outlets, Fuses, Batteries (including Vehicles), Automotive Circuit Troubleshooting, Charging Systems, Testing electronics in Cars etc.
- Accurate Battery Voltage Test - Includes 1.5V, 9V, and 12V battery test modes to easily test a wide variety of batteries. 1.5V and 9V modes will automatically detect and display battery status.
- Ensures Safety - Double fuse is anti-burn and protects from overloading. The silicone cover can protect the multimeter from failing damage and prevent electric shocks. And low battery indication will be displayed when battery power is low.
- Ease of Use - Support Data Hold, Auto Shutoff and Continuity Buzzer. Includes Convenient feature like LCD Backlit Screen makes it easy to use in dimly light areas. Batteries/Set of Test Leads/User Manual are Included.
- Additional Tips - This Multimeter is designed to troubleshoot a variety of automotive and household electrical problems safely and accurately. It's a suitable tool if you want to do some household or commercial improvements whether DIYers or Hobbyists. (NOTE - This meter can not test AC Current; Ensure your multimeter is set to the correct setting before testing)
Astroai M4K0R Multimeter Tester, Trms 4000 Counts Volt Meter Auto-Ranging Ohmmeter Digital 1.5V/9V/12V Battery Voltage Tester Measure Voltage Current Resistance Diodes Continuity Capacitance








- Wide application - The AstroAI M4K0R Multimeter accurately measures AC/DC voltage to 600V, Current to 10A, Resistance to 40M. You can use it for continuity test, diode test, battery test and live wire test. Includes 1.5V, 9V and 12V battery test modes to easily test a wide variety of batteries. Multimeter light turns red for low voltage and green for enough voltage.
- Non-contact- Fully safe non-contact voltage testing with sound and light alarms. You can detects AC voltage without the use of test leads. Uses NCV functionWhen the Meter senses a strong AC signal, the red indicator light will turn on and the buzzer will emit a quick beep.
- Thoughtful design - Support Data Hold, Max, Auto Shut-off, low battery indicator and continuity buzzer. Includes Convenient features like Audial and Visual Alarm, LCD Backlit Screen and Flashlight make it easy to use. Two 1.5V AAA batteries are included in the package.
- Ensures safety- Double ceramic fuse is anti-burn and protects from overloading. The multimeter has passed overvoltage category III 600V safety standards. The silicone cover is able to protect the multimeter from failing damage and prevent electric shocks.
- Additional tips - This Multimeter is designed to troubleshoot a variety of automotive and household electrical problems safely and accurately. Its a suitable tool if you want to do some household or commercial improvements whether DIYers or Hobbyists.
Yojock UT003 Usb C Tester Usb Power Meter 2 In 1 Digital Multimeter 3.6-32V 0-8.0A Voltage And Current Tester









- Upgraded Multifuntional USB C Power Meter - The USB tester can detects Voltage, Current, Capacity, Electric Quantity, Power, Temperature, Resistance, Charging Time and other data of the USB or type C Port Devices. A Must Gadget checks the charging performance(charging speed and quality) of the output wall/car/solar panel chargers and USB charging cables. It can be also used to test capacity and electric energy of power bank. Measuring voltage - 3.6V-32V; measuring current - 0-8.0A.
- Latest Upgraded IPS Color Display Screen - New upgraded version offers 8 IPS main color screen display interfaces, allowing switching the display interface by pressing the key. The fonts are larger in one mode, which can read the data at a glance and facilitate viewing. This instrument can monitor Voltage, Current, Capacity, Electric Quantity, Power, Load Impedance, ect..
- Wide Range of Application - The USB power meter comes with A OTG adapter, supports PD3.0/PD2.0, QC3.0/QC2.0, BC1.2 and USB A or USB C port, supports the updated iPhone 13 Pro mobile phone. (Support iphone 13/12/11/X/iPhone Xs quick charging, 29W power, 5V3A/9V3A/12V2.5A/15V2A). Compatible with new MacBook Pro, MacBook, iMac, iMac Pro, Dell XPS, Acer Aspire, HP Spectre, Lenovo Thinkpad, Eluktronics, Razer Blade Stealth, Chromebook, Microsoft Surface Pro and more Type C devices and chargers.
- Test Power Bank Capacity - Before testing the power Bank,please fully charge the power bank,insert the usb voltage tester and double-click to clear the data,then connect the load or mobile phone (continuous discharge is required).ensure that the discharge voltage is 5V or 9V.(mAh is multiplied by 1.35 when discharge voltage 5V, and mAh is multiplied by 2.45 when discharge voltage is 9V, which is equal to the exact capacity of the battery of the power bank.)
- Professional Safety Guard - This USB C tester featured with over-voltage protection, over-current protection, under-voltage protection, low energy protection. This upgraded USB Type C tester can detect safety and maximally protect the appliances from damaging. It will cut off output automatically, while it will save data when power off suddenly.
Crenova 8233D Multimeter 6000 Counts Digital Multimeter Dc Ac Volt Meter Ohm Volt Amp Tester Measures Voltage Current Resistance Capacitance Continuity Diode Duty-Cycle Frequency Ncv Live Wire Test
Ranked #6 in Best DC Voltage Multimeters Of 2024
Ranked #13 in Best Automotive Multimeters Of 2024









- More Versatile than Expected - MS8233D multimeter can accurately measure DC/AC voltage, DC/AC current, resistance, capacitance, frequency, and duty cycle, test continuity and diode, and detect live wire and NCV.
- User and Device Protection - The digital multimeter conforms to IEC61010-1 CAT III 600V safety standard. Two built-in fuses provide overload protection on all ranges. Insulated rubber holster prevents the user from electric shock.
- 6000-Count LCD Screen - Equipped with a 6000-count (3 5/6 digits) LCD display, the multimeter tester gives clear and accurate readings. Bright backlight allows for working in the dark places.
- More Powerful Features - The multi tester features practical functions, such as switchable manual/auto range modes, max/min value, data hold, low battery indicator, and auto power off. The multimeter has a sampling speed of 3 times per second.
- Non-Contact Voltage Detector - Non-contact voltage testing has sound and light alarms. When AC voltage is detected, the buzzer beeps and light flashes. The stronger the AC voltage is detected, the faster the buzzer beeps.
- Wide Range of Uses - This Multimeter is designed to troubleshoot a variety of automotive and household electrical problems safely and accurately. A good helper for electrician test, household use, automotive, industrial electrical problems.
- All-in-One Set - The MS8233D Multimeter also comes with 1 pair of probe test leads, 1 pair of alligator clips, 2 AAA batteries (1.5V each), 1 carrying box and 1 user manual to make it perfect for home, school, lab and factory use.
Morning Group PZEM-015-100A Dc Multifunction Battery Monitor Meter,0-200V,0-100A (Widely Applied To 12V/24V/48V Rv/Car Battery) Lcd Display Digital Current Voltage Solar Power Meter Multimeter Ammeter Voltmeter







- 1.9 in 1 Measuring Type/Range - Voltage 0-200V,Current 0-100A,Power 0-20000W,Impedance 0-1000,Internal Resistance 0-999m,Capacity 0-1000AH,Dump energy 09999kWh,Running time 0-999 hour.
- 2.LCD Display - Large-screen LCD with a full sight of 180 view,The blue backlight can be turned on/off manually.
- 3.Two modes - normal display mode and dormant mode.
- 4.No screws design - Press down terminal buttons, insert bare thread and release.
- 5.Wildly application - DC multifunction battery meter wildly applied to solar system/industrial assembly line/Automobile/RV etc.
Astroai ASIM6K0R Digital Multimeter, Trms 6000 Counts Auto-Ranging Voltage Tester Voltmeter Measuring Ac/Dc Voltage Current







- WIDE APPLICATIONS - This AstroAI digital multimeter features 6000 counts auto-ranging for accurate measurement of AC/DC Voltage, Current, Resistance, Continuity, Capacitance, Frequency, Diodes and Temperature. This multimeter is a really useful tool for electrician test, household use, automotive, industrial electrical problems
- LED INTELLIGENT JACK - Switch the dial and the LED lights on and the jacks will shine accordingly. Switch the dial to choose the function you need, the corresponding LED light flashes to tell you which jack you should choose. A large LCD backlight display and flashlight on the back ensures easy use in dimly lit places. Stable Kickstand, pen slot on the back.
- MULTIFUNCTION - Features smart functions, Low battery prompt, Data retention, Max/Min data, Auto Power-Off, Auto-Ranging, Backlight and Flashlight. The LCD screen changes to red while detecting live wires, and the backlight turns orange when measuring high voltage.
- NON-CONTACT Safety - This DMM is designed with safety in mind. It features non-contact voltage testing and Live function with sound and light alarm, works for outlets, sockets, terminals, and more in safety.
- ADDITIONAL TIPS - The multimeter has passed overvoltage category III 600V and CE safety standards. Anti-Burn with a double ceramic fuse and thermistor protection circuit; The fuses can protect the multimeter effectively; There is overload protection on all range. The silicone protective case effectively prevents the machine from damage.
Kaiweets KM100 Digital Multimeter With Case













- Customer Service - KAIWEETS provides a lifetime after sale service and technical support. This digital multimeter is included with 2 AAA batteries (pre-installed), comes with a carrying case and 2 decent cable leads.
- Multi-Function - This multimeter can test AC/DC Voltage, DC current (Can not for AC current), Resistance, Continuity, Diode Measurement.
- Sensitive Test - Please make sure the rotary switch is located at the right test range. Data hold function, backlight function helps you test clearly and quickly in a dim place.
- Safety Operation - IEC Rated CAT III 600V, CE and RoHS certified. Anti-Burn with double fuses. This multimeter has overload protection on all ranges.
- Widely Used - The Digital Multimeter is designed to be safe and accurate, and suitable for electrician test, household use, automotive, industrial electrical problems.
Innova 3340 Professional Automotive Digital Multimeter









- Designed to pinpoint engine problems; tests alternator diodes, duty cycle, solenoids, breaker points, wiring, switches and more
- Features auto-ranging, auto shut-off and over-load protection
- Measures up to 15 amps for device testing
- 10 MegOhm input impedance; safe for electrical and automotive use; prevents damage to the vehicles ECU
- Includes temperature probe, inductive RPM clamp and carrying case
Crenova 890 Z Digital Multimeter















- Multi-function Tool - 890Z Multimeter can accurately measure AC/DC current, AC/DC voltage, resistance, frequency, capacitance, continuity, diode, transistor (hFE), and temperature. Suitable for industrial, household, automotive use.
- Operational Safety - IEC61010 and CAT III certified. Double fuse protection against burnout and overload. Silicone cover can protect the multimeter from damage and electric shock. When the battery is low, it will display low battery indication.
- High-end Display - Designed with 6000 counts LCD display, Backlight function helps to see the clear readings in dimly-lit areas. And the build-in torch will light up the dark places. TRMS technology provides precise and accurate measurements.
- Thoughtful Design - This digital multimeter is equipped with many brilliant features, such as auto power off, data hold, large LCD backlit screen, torch, support stand, test lead holder.
- NCV Detection - Non-contact voltage detector is good for quick and precise sensing AC electric field without touching any wires. When AC voltage is detected, the buzzer beeps and light flashes.
- Wide Applications - The multimeter tester is designed safely and accurately, and suitable for electrician test, household use, automotive, industrial electrical problems.
- Full Equipment - Except for 890Z Multimeter, it comes with K-type thermocouple (1), probe test leads (1 pair), alligator clip test leads (1 pair), 1.5V LR6 AA batteries (2), carrying box (1), and manual (1).
Fnirsi DMT-99 Digital Multimeter 9999 Counts Trms







- Recording Mode - FNIRSI multimeter can plot measured value ripple that changes over time is drawn, and the fluctuation of voltage or current over time can be observed. 8 measured values can be recorded, and the Max and Min measurement values are displayed
- Monitoring mode - Custom thresholds can be set in multimeter monitoring mode, and a warning will be issued if the voltage exceeds or falls below the set threshold
- Solving hunger - Built-in 1500 mAh rechargeable battery allows the multimeter tester to work longer. No more manually replacing bulky, unfindable disposable batteries, the Type-c port renews energy at any time
- Intelligent Mode - In intelligent mode, DMT-99 digital multimeter can identify the measurement content and select the range with the best resolution, making the measurement more convenient and faster,Takes out the guesswork for most applications
- Private customization - 2.4-inch full-color TFT screen display, 240*320 resolution, makes it easy to use in dimly light areas. Supports DIY startup interface and creates your own personal entry interface
- Intelligent Multimeter - It measures AC/DC voltage, AC/DC current, and can be used to test resistance, capacitance, continuity, diode, NCV and live wire etc. Applicable to automotive, home appliances, other electronic repair. Dual ceramic fuse protection
Astroai ASIDM130B Digital Multimeter, Voltmeter 1.5V/9V/12V Battery Voltage Tester Auto-Ranging/Ohmmeter/Dmm







- VERSATILE SETTINGS - The AstroAI Digital Multimeter accurately measures AC/DC Voltage, AC/DC Current, Resistance, Continuity, Capacitance, and Tests Diodes and Batteries (1.5, 9, 12V Battery Settings)
- NON-CONTACT SAFETY - This DMM is designed with safety in mind. The NCV Function minimizes exposure to live wires; the probe works for outlets, sockets, terminals, and more
- PRACTICAL FEATURES - When using a Multimeter, the small details like Data Hold, a Large Backlight LCD Screen, Kickstand, and Low Battery Indicator help get the job done better and faster
- TROUBLESHOOTING MADE EASY - Whether the job is a quick DIY continuity check or a complex problem, the durable design and consistent readings pair well for a both long days in the field or tinkering in the garage
- SAFETY FIRST - Two integrated fuses rated at F500mA/600V and F10A/600V; Anti-Burn with double ceramic fuse and thermistor protection circuit; The fuses can protect the multimeter effectively; Overload protection on all ranges.
Tesmen TM-510 Digital Multimeter, 4000 Counts







- Smart Digital Multimeter - Thanks to its Smart Auto Mode, TESMEN TM-510 4000 counts smart digital multimeter allows you to quickly switch between all measurement tasks, including AC/DC voltage, resistance, and continuity, without selecting a mode or range. It makes measuring work easy, fast, and accurate
- Non-contact - Completely safe Non-Contact Voltage test with a visual and audible alarm; a time-saving and safe feature. You can measure the voltage on the AC wire without having to connect the wire, which makes troubleshooting the line much easier
- Safety Guarantee - CAT II 600V, CE, and RoHS certified. Overload protection measures are used inside the instrument to improve the product's safety performance and maximise users' safety. The outer silicone cover protects the multimeter from damage and potential electric shock
- User Friendly - Supports Data Hold, Automatic Shutdown, Low battery indicator, Backlight display, and Flashlight. All these convenience features make the instrument more than enough for daily use by amateurs, car owners, and homeowners. Easy to use, enjoy endless DIY fun
- What you will get - Package includes a digital multimeter, 2 test leads, a storage bag, 2 AAA batteries, and a user manual
Klein Tools MM325 Multimeter, Digital Manual-Ranging 600V Ac/Dc Voltage Tester
Ranked #1 in Best Bosch Multimeters Of 2024
Ranked #5 in Best DC Voltage Multimeters Of 2024












- VERSATILE FUNCTIONALITY - Measures AC/DC voltage up to 600V, 10A DC current, 2M resistance; additional features include continuity, diode test and battery test
- LEAD-ALERT PROTECTION - LEDs on the meter illuminate to indicate proper test lead placement, enhancing accuracy and safety during measurements
- BACKLIT DISPLAY - LCD shows clear readings in low-light conditions for enhanced visibility
- BATTERY TEST - Battery test mode can be used for checking if batteries are working
- CONVENIENT FEATURES - Test lead holders on the back of the meter, kickstand and optional magnetic hanger (Cat. Nos. 69445 or 69417) for hands-free operation
- DURABLE CONSTRUCTION - Built to withstand a 6.6-Foot (2 m) drop, for use in basic and controlled electromagnetic environments such as residential, business and light-industrial locations
- COMPLETE PACKAGE - Includes test leads with CAT III/CAT IV safety caps, instructions, and 2 x AAA batteries
Tesmen TSM-522S Digital Multimeter, Trms 4000 Counts Voltage Tester







- Smart & Manual Mode - TESMEN TSM-522S TRMS 4000 counts is a smart multimeter that combines automatic and manual functions. The automatic mode can automatically switch between the three measurement tasks of AC/DC voltage, resistance, and continuity without any operation, while the manual mode can freely select all measurement tasks, which improves the flexibility and efficiency of measurement
- Multi-function - Accurately measure AC/DC voltage, resistance, continuity, frequency, diode, capacitance, non-contact voltage test and live wire. This voltmeter can be applied to automotive electronics, household appliances, electrician testing, etc. Simple and easy to use, enough to meet your changing measurement environments and complex measurement needs
- Safety Protection - The multimeter tester has passed CAT III 600V and other related certifications, and internal overload protection measures are adopted to ensure your safety. The fully wrapped case protects the multimeter from damage and isolates the current, so you don't have to worry about the risk of electric shock
- Easy to Operate - The backlight display and flashlight are suitable for dark environments, data retention is convenient for recording data, auto power off saves power, and the low battery indicator reminds you to recharge in time. These convenient features can make this voltage tester more in line with your actual use scenarios, and enhance your experience in daily use
- What you get - The package includes a digital multimeter, two test leads, a storage bag, two AAA batteries and a user manual
Zizev ZIZEVNI54DEAOU3 Digital Multimeter For Ht123 Tester Electrical Parameter Measurement Multimeters









- Easy to Use - With built in overload measures and equipped with voltage resistant relays, you can use this meter with confidence! Overload protection measures are adopted inside the instrument to improve the safety performance of the product and maximize user safety.
- Rubber Case - Equipped with an industrial grade rubber protective cover to achieve dual , built in test pen storage bag and hanging hole on the back of the protective cover, anti drop and wear resistance, comes with a long life span.
- Voltmeter - The voltmeter is made of environmentally friendly materials, and odorless, and can be used with confidence. Digital Multimeter Completely safe non-contact voltage testing with visual and audible alarms; a time-saving and safe feature.
- LED, Backlit Display - Equipped with a LED and a backlit screen, you can use more conveniently at night. You can use the digital multimeter to intelligently measure voltage on AC power lines without connecting wires, making line troubleshooting much easier.
- Automatic Identification - This meter can realize automatic identification, which can choose corresponding gear and range, no need to change gears to make measurement easy. With the HT Automatic Digital Multimeter's Smart Auto Mode, it lets you quickly switch between all measurement tasks.
Drok FBA200720 Dc Power Meter, 100A 6.5-100V 12V 24V 36V 48V Volt Amp Watt Meter, Lcd Display Multimeter Voltage Current Energy Rv Battery Monitor Voltmeter Ammeter Panel






- Multifunctional - DROK Mutimeter is a high-precision DC digital meter that can measure and display the real-time voltage, current, power and energy consumption of DC electrical equipment accurately, help to understand the operation status of the equipment timely.
- Clear Display - The large LCD Backlit Screen makes it easy to read in a dark or low light conditions.
- Auto-Save - The backlight has memory function, it can store the on or off state when power off.
- USB Port - The connection between DROK multimeter and the current sensor is very convenient through a USB-USB cable.
- Application - It is applicable for 6.5-100v various batteries such as lead acid,ternary polymer,iron phosphate and other lithium battery. Can be used as battery voltage meter, battery capacity tester panel for motorcycle, golf carts, car, marine, RV, boat, solar generator.
Astroai ABMUDM200MRD-US Digital Multimeter Voltage Tester








- ACCURATE MEASUREMENTS - The AstroAI DM200M multimeter is designed to accurately test AC/DC Voltage, AC/DC Current, Resistance, Continuity, and Diodes. These accurate readings easily and efficiently diagnose electrical issues.
- EASY TO USE - The DM200M Multimeter features data hold, max value recording, 15-minute auto power off, and a low battery indicator. It includes a silicone protective case and a kickstand for convenient use. The backlit display ensure easy troubleshooting even in dimly lit areas.
- ENHANCED SAFETY - There are two ceramic fuses that protect the multimeter from burning and overloading. The F250mA/250V and F10A/250V explosive-proof ceramic fuse tubes effectively protect the multimeter. The multimeter itself exceeds CAT III 600V safety standards.
- PORTABLE & COMPACT - This pocket-sized multimeter can easily fit in your toolbox, and you can even place it in the gloove box. It is ideal for everything from on-the-go measurements to multi-day jobs.
- WIDE APPLICATION - The AstroAI DM200M Multimeter is a versatile tool for home troubleshooting, automotive diagnostics, electrical service, electrical engineering studies, and more.