Ermenrich Test DM120 Digital Multimeter

The Ermenrich Test DM120 is a professional-grade digital LCR meter for measuring capacitance and inductance. It measures a wide range of parameters: inductance, capacitance, DC resistance (DCR) and AC resistance (ACR), quality factor (Q), impedance phase angle (θ), dissipation factor (D), and equivalent resistances (ESR and Rp). These values are essential when tuning resonant circuits, testing transformers and chokes as well as selecting components to a given specification. Handy extras include smart automatic LCR mode selection, component sorting, and data hold.

At up to 5 readings per second, the meter is well suited to high-volume component testing. Resistance ranges span 20Ω to 200MΩ (ACR) and 200Ω to 200MΩ (DCR), capacitance runs from 20nF to 20mF, and inductance from 20µH to 20kH. The low end covers small components and windings, while the high end handles large coils, mains chokes, and high-resistance circuits. Readings appear on a backlit, dual-line, 20,000-count display that makes even small changes in the measured value easy to spot.

Two convenience functions round things out: Hold and REL. Hold freezes the reading on screen so you can log it or check it against a reference value. REL stores the current reading as a reference and then only shows the deviation from it, which makes matching component pairs and checking parts against a standard much quicker.

The housing is made of high-strength plastic and rated IP67 and, therefore, the meter stands up to dust and moisture, and it is ready for demanding environments. It runs on six AA batteries, and a battery indicator shows the remaining charge. The meter shuts off automatically after 5 minutes of inactivity.

Key features:

• Professional LCR meter for measuring inductance, capacitance, and resistance
• Advanced parameters: DCR, D, Q, θ, ESR, and Rp for in-depth component analysis
• Automatic component type detection (L/C/R) and sorting mode
• Test frequencies up to 100kHz and 5 readings per second
• Backlit dual-line 20,000-count display with Hold and REL functions
• IP67-rated housing, auto power-off after 5 minutes of inactivity
• Runs on six AA batteries, with a multi-level battery indicator on the display

The kit includes:

• Digital LCR meter
• Test leads
• Pouch
• User manual and warranty card