Pro In Circuit ESR Capacitor Tester With Capacitance Meter, Accurate ESR Readouts On Circuit, Easy In Circuit Testing For DIY Enthusiasts And Pros, Designed And Engineered In The USA For Reliability And Local Support

In-Circuit ESR Capacitor Tester - 1 Pack Capacitance Meter
✔️ In-circuit ESR test with auto-discharge, precision and US support

This compact ESR tester measures ESR and DCR directly on live PCBs, ideal for hobbyists and professionals diagnosing capacitor health during repair, testing power supplies, and validating circuit reliability. Designed and engineered in the USA to ensure local support and dependable performance.

✅ ✅ Microprocessor-controlled 100 kHz test frequency for accurate ESR readouts on active circuits
✅ Auto-discharge of the capacitor under test to prevent residual charge interference
✅ Audible buzzer announces ESR range and automatic calibration on power-up
✅ Measures ESR 0.47µF to 2200µF in or out of circuit, with DCR testing
✅ Portable, rugged design with easy one-handed tweezers and non-polarity probes

💡 What is an in-circuit ESR tester used for in electronics repair and maintenance?

A handy tool for diagnosing capacitor health on live boards and guiding replacements. - In-circuit ESR tester helps verify capacitor health on PCBs during repair. - Useful for power supplies, audio gear, and motor controllers where ESR matters. - Provides quick, non-invasive checks with auto-discharge and audible cues. - Supports testing both in-circuit and out-of-circuit configurations for flexible workflows.