Reviews Performance Measurement

Juried Engineering LM393AP LM393 Precision Dual Differential Comparator, Industrial Grade IC DIP-8 Breadboard-Friendly (Pack of 20)

  • The module is made of high‑quality components and processed with stable performance. It can be widely used in various voltage measurement and control applications..
  • The controller presets 5 different functions and can customize and add other specific functions according to the user's needs..
  • Increase the automatic power saving function, the user can set it autonomously. All setting parameters can be saved automatically, and the setting contents will not be lost when power is off..
  • The voltage monitoring module is a multi-function voltage monitoring controller that uses an industrial-grade microcontroller as the main control unit with a wide measurement range and high accuracy..
  • The user can set the upper voltage limit and the lower voltage limit. Measurement range is 0-100V DC, measurement accuracy +/-0.1V. Newly added 0-99.9 seconds delay pull and 0-99.9 seconds delay off function..
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YWBL-WH AC Round Frequency Meter LED Digital Display Hz Frequency Indicator Light

  • MAIN FEATURE---Produce Name: LED Hz Indicator.
  • Applicable: circuit frequency measurement.
  • 20-75Hz MEASUREMENT RANGE---The AC frequency meter is of wide measurement of 20-75Hz.
  • HIGH ACCURACY---The AC frequency meter is of high accuracy of ±2%, helping to provide you reliable data.
  • CLEAR DISPLAY---Made of high quality material, the AC frequency meter is of clear display, exquisite workmanship, long service life, and stable working performance.
  • 5 COLORS---The AC frequency meter is of 5 different colors, red, white, blue, green,yellow, you can choose one according to your preference.
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Refractometer Concentration Meter, Brix Refractometer, Brix Tester 0-90% for Liquid Sugar Test

  • Accurate measurement---In the measurement of our refractometer concentration meter, the refractive index is made according to the different refractive index of the liquid, which is small and accurate..
  • Simple operation---Our refractometer concentration meter has a simple and easy-to-understand operation method, which is convenient for your use. You can quickly get started and operate..
  • Wide application---This refractometer concentration meter is widely used, this refractometer is suitable for most liquid sugar testing. Can well meet your measurement needs..
  • Convenient to carry---our refractometer is easy to use, durable and small in size and light in weight, making it easy to carry around..
  • Practical and durable---As far as practicality is concerned, the high quality of this refractometer can maintain its high performance for a long time..
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EKG ECG Caliper Electrocardiogram Divider Blue

  • ...ven under strong sunlight. It will automatically turn off after 5 minutes of non-use to save power..
  • Wide Applications Compared to the ordinary rules, this stainless steel caliper can measure not only length but also caliber and depth, allows you to measure circular and cylindrical objects, more functions and better performance will satisfy you. It has always been used by professionals and hobbyists alike, jewelers, hobbyists, woodworkers, machinists, DIY, automotive mechanics, and more..
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Handheld Sound Level Meter,LCD Decibel Meter,Mini Digital Noise Meter,Decibel Tester,Decibel Alarm,with Red Black Light Alarm and Sound Alarm,Range 30-130dBA

  • This instrument is high precision sound level meter, accuracy up to ±1.5dB,resolution: 0.1dB.Temperature measurement function and Temperature unit selection(℃/℉)..
  • Red back light alarm and sound alarm function. This digital sound level meter with stable and reliable performance.Wide measurement range from 30dB to 130dBA.There will be a alarm warning when the measurement data exceeds the standard..
  • Data hold function, maximum and minimum value measurement. LCD display with backlight, convenient to use at night..
  • Low battery indication, automatic & manual power off function. Compact and light, convenient to hold and carry..
  • Equipped with sponge ball for sensor protection. Applications includes: Environmental measurement, law enforcement, work place design, sound level analysis of machinery and engines..
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THERMOCLICK New Forehead Thermometer for Adults and Kids, Touchless Thermometer with Non-Contact, Accurate Sensor for Fast Read, 3 in 1 Multiple Mode for Forehead, Object, Humidity MEAS, Made in Korea

  • ...or easy measuring by anyone regardless of the professionality through intuitive menu composition and easy operation method..
  • For the health of the precious you – Every component from the main measuring sensor to the smallest components of the untact thermometer is made in Korea possessing high accurate measurement performance. Also always provides an excellent performance along with convenient usage from any place where people come and go such as home, stores, hospitals and others through ergonomic design that perfectly fits the hand of the user and 0.18lb light weight..
  • For the smart you – The health status can be directly checked through each color display in accordance of the fever condition. The silent mode allows quiet measuring for homes with babies so it does not bother the baby. Additionally instead of just using it to measure body temperature, if you connect the thermometer with Bluetooth through application it saves the body temperature information allowing you to check the record, body temperature change graph and others through your smart phone..
  • More than just a standard thermometer – You can improve the infant care environment by simply measuring the temperature of the bathing water, baby food. It also includes the indoor temper....
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LaserWorks LW1000SPI Laser Rangefinder for Hunting Golf,Fog Measurement,Waterproof Camouflage

  • High Measure Performance: 5-1000 yards performance, furthermore 1600 yards for highly reflective target. Powerful optical 6X magnification. Lightning fast measurement..
  • Superior Functional: Measure distance, speed, flagpoles locking, fog mode, scanning continuous measurement..
  • Excellent Quailty: Seal deal with a water and dust resistant, durable body, perfect for carrying while golfing or hunting, or for measuring and surveying..
  • So Simple Operation: Totally One-key to measure, One-key to switch mode. Auto power-off in 15 seconds inactivity..
  • Incredibly Compact: It is about the same size as a small candy bar, completely palm and pocket friendly. Class I laser product,Maximum average radiant power:70.1μW, no harm for human health..
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Stroboscope, Stroboscope Tachometer Non Contact for Industrial Maintenance

  • [Durable Material] The stroboscope is made of high quality ABS material, which is durable, stable in performance, and can be used for a long time..
  • [LCD Display] With large LCD backlit display, which is easy to read data in the dark, and the measurement result is accurate, to meet your various need..
  • [High Efficiency] Stroboscope adopts digital control to adjust the flash frequency, low power consumption, with speed storage, and improves the measurement efficiency..
  • [Anti Interference] Adopt photoelectric technology, anti interference, realize non contact measurement, detect the state of moving objects and surfaces defects..
  • [Compact And Portable] Non contact stroboscope tachometer is compact, easy to carry and store, widely used in industrial maintenance, production, laboratory, etc..
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VMV-1 Digital Vacuum Gauge,0-30000 Microns Range, 2% Accuracy, 7/16-20UNF Interface

  • 【Measuring Range】 The dual scale pointer pressure gauge uses three times the scale (PSI / Bar / KPa) to measure pressure, does not require batteries, and can meet your different needs. Measuring range: 0-300psi, 0-2000kpa, 0-20bar..
  • 【Accurate Measurement】 The dual-scale pointer pressure gauge can measure pressure without a battery. Good airtightness ensures accurate pressure measurement. The transparent dial cover and pointer display dial make reading more convenient..
  • 【Application】 The pressure gauge is an excellent pressure measuring tool with stable performance, which can be used to measure the pressure of water, oil, natural gas, and liquids. Stable performance, high reliability, easy to use and practical..
  • 【Size】 The pressure gauge measures approximately 11.3 x 9 x 3.2 cm/4.4 x 3.5 x 1.3 inches and weighs approximately 188 grams/6.6 ounces. Small size and easy to carry..
  • 【Easy to Install】In order to maintain the normal performance of the overflow hole, please leave a space of at least 10mm behind the work surface. Do not modify or block the overflow hole..
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AC Frequency Meter LED Digital Display 20-75 Hz Signal Ac Hz Frequency Indicator Light ST16HZ Round Red White Blue Green Yellow (Blue)

  • MAIN FEATURE---Produce Name: LED Hz Indicator.
  • Applicable: circuit frequency measurement.
  • 20-75Hz MEASUREMENT RANGE---The AC frequency meter is of wide measurement of 20-75Hz.
  • HIGH ACCURACY---The AC frequency meter is of high accuracy of ±2%, helping to provide you reliable data.
  • CLEAR DISPLAY---Made of high quality material, the AC frequency meter is of clear display, exquisite workmanship, long service life, and stable working performance.
  • 5 COLORS---The AC frequency meter is of 5 different colors, red, white, blue, green,yellow, you can choose one according to your preference.
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Stroboscope Tachometer, Anti Interference Stroboscope LCD for Industrial Maintenance

  • [Durable Material] The stroboscope is made of high quality ABS material, which is durable, stable in performance, and can be used for a long time..
  • [LCD Display] With large LCD backlit display, which is easy to read data in the dark, and the measurement result is accurate, to meet your various need..
  • [High Efficiency] Stroboscope adopts digital control to adjust the flash frequency, low power consumption, with speed storage, and improves the measurement efficiency..
  • [Anti Interference] Adopt photoelectric technology, anti interference, realize non contact measurement, detect the state of moving objects and surfaces defects..
  • [Compact And Portable] Non contact stroboscope tachometer is compact, easy to carry and store, widely used in industrial maintenance, production, laboratory, etc..
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[2022 Upgraded] AURSINC NanoVNA-H4 V4.3 Vector Network Analyzer 10KHz-1.5GHz HF VHF UHF 4'' Portable Antenna Analyzer Measuring S Parameters, Voltage Standing Wave Ratio, Phase, Delay, Smith Chart

  • ...ency range of the si5351 direct output provides better than 70dB dynamic, The extended 300M-900MHz band provides better than 60dB of dynamics, and the 900M-1.5GHz band is better than 40dB of dynamics.
  • The metal shield is designed to reduce the external interference and improve the measurement accuracy.
  • ✔️[Antenna Performance Measurement] The default firmware main function for NanoVNA-H4 vector network analyzer is used for antenna performance measurement. The TX/RX method can measure the complete S11 and S21 parameters. If you need to obtain S12 and S22, you need to manually replace the transceiver port wiring.
  • ✔️[PC Control] Using PC software NanoVNASaver, NanoVNA-H4 antenna analyzer can connect to a NanoVNA and extracts the data for display on a computer, and for saving to Touchstone files. We can export Touchstone (snp) files for various radio design and simulation software through PC software.
  • ✔️ [What are Included?] NanoVNA-H4 host (with battery) x1, USB Type-C data cable x1, 30mm SMA male to male RG174 RF cable x2, SMA simple calibration kit x1, SMA female to female connector x1.
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Anthsania Forehead Thermometer for Adults and Kids Touchless Infrared Thermometer with LCD Display and Instant Readings

  • ➤➤【Accurate and Reliable Measurement】These non-contact thermometers are equipped with IR sensors , over-temperature alarm, Clear large display....
  • ➤➤【Wide Range and High Precision】 The thermometer for adults forehead has high measurement accuracy and more stable performance.These forehead....
  • ➤➤【Celsius/Fahrenheit Units Conversion】Manually Convert the Measurement reading in Celsius/Fahrenheit Units.
  • ➤➤【Quick and Accurate Readings】You can use the forehead thermometer adult non contact as a thermometer for adults and kids, and of course you....
  • ➤➤【Best Care - Safe and Hygienic】 Safe for all ages/groups and completely hygienic, avoid cross infection. The infrared forehead thermometer....
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