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10 Best Capacitor Testers 2025 in the United States
#1
Winner
Fluke 15B+ Digital Multimeter, for Electrical Applications, Measures AC/DC Voltage and Current Measurements up to 1000V and 10A, Along with Resistance, Continuity, Diode, and Capacitance Capabilities
The Fluke 15B+ Digital Multimeter is a solid choice for those looking to perform a variety of electrical measurements, including capacitance testing. With a capacitance range that caters to many everyday uses, this multimeter stands out for its ability to measure AC/DC voltage up to 1000V and current up to 10A, making it quite versatile for both residential and commercial electrical applications.
Rating
9.7
Chosen by1,210
Accuracy
Most important from
351 reviews
#2
B&K Precision 891 - Benchtop LCR Meter 300 kHz
The B&K Precision 891 Benchtop LCR Meter is a versatile and accurate tool for measuring inductance (L), capacitance (C), and resistance (R). It offers a wide capacitance range, making it suitable for a variety of testing needs in both professional and industrial settings. The high test frequency of up to 300 kHz ensures precise measurements, which is essential for detailed analysis and diagnostics.
Rating
9.4
Test Frequency
Additional Features
Most important from
1 reviews
Top 10 Best Capacitor Testers 2025 in the United States
#1
Winner
9.7 score
Fluke 15B+ Digital Multimeter, for Electrical Applications, Measures AC/DC Voltage and Current Measurements up to 1000V and 10A, Along with Resistance, Continuity, Diode, and Capacitance Capabilities
Fluke 15B+ Digital Multimeter, for Electrical Applications, Measures AC/DC Voltage and Current Measurements up to 1000V and 10A, Along with Resistance, Continuity, Diode, and Capacitance Capabilities
Display Type: clear display
Additional Features: CAT III 600V, AC/DC voltage 1000V, current 10A
Portability: 460 grams
Chosen by 1210 this week
B&K Precision 891 - Benchtop LCR Meter 300 kHz
B&K Precision 891 - Benchtop LCR Meter 300 kHz
Capacitance Range: wide
Display Type: clear, easy-to-read
Test Frequency: up to 300 kHz
Additional Features: test signal levels, selectable parameters
Velleman Atlas ESR70 Capacitance and ESR Meter
Velleman Atlas ESR70 Capacitance and ESR Meter
Capacitance Range: 1uF to 22000uF
Accuracy: 0.01 ohms
Display Type: Digital
Additional Features: Audible alerts for ESR levels
Portability: 0.1 kg, battery-powered
Related Products
Up to 11% off
GME Professional in-Circuit ESR Capacitor Tester, Capacitance ESR Meter, Designed and Engineered in The USA
GME Professional in-Circuit ESR Capacitor Tester, Capacitance ESR Meter, Designed and Engineered in The USA
Capacitance Range: 0.47µF to 2200µF
Accuracy: precise
Test Frequency: 100 kHz
Additional Features: microprocessor control, auto calibration, buzzer
Portability: lightweight, rugged, one-handed tweezers
Extech 380405 Capacitance Substitution Box
Extech 380405 Capacitance Substitution Box
Capacitance Range: wide range
Accuracy: dependable
Display Type: large dual display with backlight
Additional Features: auto zero, test hold, measures AC/DC
Portability: lightweight, modest dimensions
#10
7.2 score
B&K Precision 830C Dual Display Handheld Capacitance Meter, 199.99 mF Max Range
B&K Precision 830C Dual Display Handheld Capacitance Meter, 199.99 mF Max Range
Capacitance Range: up to 200 millifarads
Display Type: Dual Display
Portability: compact, portable, battery-powered
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Buying Guide for the Best Capacitor Testers
Choosing the right capacitor tester can be a bit overwhelming, but understanding the key specifications can help you make an informed decision. Capacitor testers are essential tools for measuring the capacitance of capacitors, which is crucial for ensuring that electronic circuits function correctly. When selecting a capacitor tester, consider the following key specifications to find the best fit for your needs.Capacitance RangeThe capacitance range indicates the range of capacitor values that the tester can measure. This is important because capacitors come in a wide variety of values, from picofarads (pF) to farads (F). If you work with small capacitors, a tester with a lower range (e.g., pF to µF) will be sufficient. For larger capacitors, ensure the tester can measure up to the required value (e.g., mF to F). Choose a tester with a range that covers the capacitors you commonly use.
AccuracyAccuracy refers to how close the tester's measurements are to the actual capacitance value. This is crucial for precise work, especially in professional or high-stakes applications. Accuracy is usually expressed as a percentage. Higher accuracy (e.g., ±0.5%) is better for detailed work, while lower accuracy (e.g., ±2%) might be acceptable for general use. Consider the level of precision you need for your projects when selecting a tester.
Display TypeThe display type determines how the measurement results are shown. Common types include digital displays (LCD or LED) and analog displays. Digital displays are easier to read and often provide more precise readings, while analog displays can be useful for observing trends and changes. If you prefer clear, easy-to-read results, go for a digital display. If you need to monitor variations, an analog display might be more suitable.
Test FrequencyTest frequency is the frequency at which the tester measures the capacitance. Different capacitors may perform differently at various frequencies, so having a tester that can operate at multiple frequencies can be beneficial. For general use, a single test frequency might suffice. However, if you work with a variety of capacitors or need detailed analysis, look for a tester with multiple test frequencies.
Additional FeaturesAdditional features can enhance the functionality of a capacitor tester. These may include auto-ranging, which automatically selects the appropriate range for the measurement, and data hold, which allows you to freeze the displayed value. Other features might include a backlit display for low-light conditions or a built-in ESR (Equivalent Series Resistance) meter. Consider which additional features will make your testing process more efficient and convenient.
PortabilityPortability refers to the ease with which you can carry and use the tester in different locations. If you need to use the tester in various places, a compact and lightweight model will be more convenient. Some testers are handheld and battery-operated, making them ideal for fieldwork. If you primarily use the tester in a fixed location, portability might be less of a concern.