MESR 100 ESR Meter Capacitance And Low Ohm In Circuit

The MESR-100 ESR Meter Capacitance And Low Ohm In Circuit kit combines two precision tools for fast, in-circuit testing of capacitors, ESR, and resistance. Designed for repair work on TVs, LCDs, audio boards, and other electronics, this duo helps you quickly identify bad or degraded capacitors without desoldering, saving time and reducing board risk. With true 100 kHz ESR measurement and ultra-low test voltage, you can confidently test components in place and make informed repair decisions.

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Benefits & Tips

• Test capacitors in circuit to verify whether they are good or damaged, without removing parts.
• Use the 100 kHz ESR method to remove capacitor impedance and measure the true internal resistance for accurate health assessment.
• Low testing voltage (< 40 mV RMS) protects delicate components during repairs on TV, LCD, and audio boards.

Product specifications

MESR-100 ESR Meter

• Measurement range: 0.001 to 100.0 Ω (in-circuit capable)
• Accuracy (after zero, tested with 1, 10, 100 Ω resistors): 0.000–1.000 Ω: 1% + 2 digits; 1.000–10.00 Ω: 1% + 1 digit; 10.00–100.0 Ω: 2% + 1 digit
• Refresh time: Auto mode 0 to 2 s (depends on capacitance value); ~0.4 s on labeled ranges
• Measuring voltage: < ~40 mV RMS (testing voltage)
• External power: 5V micro USB
• Battery: 2 × AA 1.5 V (not included); Battery life > 80 hours
• Color: Black
• Resolution: High accuracy with 4-digit display on the 1 Ω range
• Special features: Dual terminal design with printed ESR table for fast checks
• Note: Capacitance Meter is used for testing the internal resistance of the capacitor, not its capacitance value

M6013 V2 Auto-Ranging Capacitance Meter

• Display: 128 × 64 dot matrix LCD; 5-digit readings
• Measuring range: 0.01 pF to 47.000 nF; 47.00 nF to 47.000 μF; 47.00 μF to 470.00 mF
• Accuracy (after zero, tested with 1, 10, 100 Ω resistors): 0.01 pF–47.000 nF: 1% + 2 digits; 47.00 nF–47.000 μF: 1% + 1 digit; 47.00 μF–470.00 mF: 1–3% + 1 digit
• Refresh time (auto mode): ~0.2 s to 2 s (depends on range)
• Measurement voltage: < 0.8 V; Open-circuit clamping voltage: ~1.25 V
• External power: 5V micro USB
• Color: Orange
• High resolution: 5 digits
• Notes: Reads capacitance across a very wide range, from pico- to several hundred thousand microfarads; suitable for DIY and professional use

Package includes:

• MESR-100 ESR Meter
• M6013 V2 Auto-Ranging Capacitance Meter

Warnings / Reminders

Note: The Capacitance Meter is used for testing the internal resistance of capacitors, not for measuring capacitance value.

For those requiring versatility in a single toolset, this MESR-100 and M6013 kit delivers reliable, in-circuit diagnostics with clear, fast readings designed for both professional technicians and dedicated hobbyists.