ESR DCR Capacitor Tester LCD Meter with Test Leads & Smart Shutdown

JOCESTYLE ESR DCR Capacitor Tester — Precision In-Circuit Testing Made Easy

Whether you're a professional electronics technician or a dedicated hobbyist, the JOCESTYLE ESR DCR Tester delivers fast, accurate, and reliable capacitor measurements right on its clear LCD display. Measure ESR (Equivalent Series Resistance) and DCR (DC Resistance) with ease — both online and offline — using a compact, handheld unit built for real-world bench work.

Key Features

• High-Precision Measurement: Accurately measures ESR and DCR of electrolytic capacitors with industry-standard 100 kHz frequency.
• Dual Auto-Ranging: Measuring range 0–25Ω, automatically switching between 0–5Ω (resolution: 0.01Ω) and 5–25Ω (resolution: 0.1Ω).
• Accuracy: ±1.5% ±0.01Ω (0–5Ω range) and ±1.5% ±0.1Ω (5–25Ω range).
• One-Button ESR/DCR Switching: Toggle between ESR and DCR modes with the ON/OFF/ZERO button — automatic zero adjustment every time.
• Synchronous Detection: Short-circuit uses synchronous detection to ensure the displayed value is the true ESR.
• Temperature Compensation & Versatile Testing: Includes temperature compensation and capacitance measurement for a broad range of testing applications.
• Overvoltage Protection: Input end is protected against overvoltage for safe operation.
• Smart Auto Shutdown: Automatically powers off after ~5 minutes of inactivity. Low-voltage warning on LCD with auto shutdown after 10 seconds.
• Rechargeable Battery: Uses a 3.7V 14500 lithium battery (not included) — charge via DC 5–6V USB while in use. Charging indicator: red = charging, green = fully charged. Charge time: 2–3 hours.
• Compact & Portable: Measures 125 × 80 × 32 mm (4.92 × 3.15 × 1.26 inches), lightweight and easy to carry.
• Low Power Consumption: Maximum working current ~60 mA at 3.7V.

Specifications

What's in the Box

• 1 × ESR DCR Tester
• 2 × Test Pens
• 2 × Test Clips
• 1 × USB Charging Cable

Note: Battery is NOT included. Colors may vary slightly from images due to monitor and lighting differences. Please allow ±1–2 cm variance due to manual measurement.

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Frequently Asked Questions

Q: Can the ESR DCR Tester measure capacitors while they are still installed on a circuit board?

A: Yes! The JOCESTYLE ESR DCR Tester supports both online (in-circuit) and offline measurement, allowing you to test electrolytic capacitors without fully removing them from the board. This makes troubleshooting much faster and more convenient.

Q: Does the ESR meter come with a battery included?

A: No, the battery is not included. The tester requires a 3.7V 14500 lithium rechargeable battery (sold separately). It can also be operated while charging via a DC 5–6V USB power source.

Q: How do I switch between ESR and DCR measurement modes?

A: Simply press the ON/OFF/ZERO button to toggle between ESR and DCR modes. The tester performs automatic zero adjustment each time you switch, so you always get accurate, reliable readings without manual calibration steps.

Q: What does the smart auto-shutdown feature do?

A: The smart auto-shutdown conserves battery life by automatically powering off the unit after approximately 5 minutes of inactivity. If the battery voltage drops too low, the LCD will display a warning and the device will shut down after 10 seconds to protect the battery.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.