Extech 380947 True RMS AC/DC Mini Clamp Meter
The Extech 380947 is a compact True RMS clamp meter designed for tight spaces and detailed diagnostics. It measures AC and DC current up to 400 A, supports full multimeter functions, and includes a non-contact frequency measurement capability through its clamp jaws.
Description
The 380947 is built for professionals who need precision in a small package. Its 0.9″ (23 mm) jaw opening allows it to reach into confined areas, yet it supports current ranges up to 400 A AC/DC. True RMS measurement ensures accuracy even on distorted or non-sinusoidal waveforms. The meter also measures AC/DC voltage (up to 600 V), resistance, and capacitance, and offers continuity and diode test modes. One standout feature is the ability to measure frequency (up to 10 kHz) non-contact through the clamp jaws, which simplifies waveform diagnostics without needing to connect leads. The meter’s display shows readings on a 4000-count LCD with a 40-segment analog bargraph for trend visibility. It’s protected against overloads up to 400 A DC. Overall, the 380947 is well suited for plant maintenance, HVAC, telecom, and compact installations where space is constrained.
Features
- True RMS (AC & DC) — Accurate in distorted or noisy signal environments
- Current Ranges — Up to 400 A AC/DC
- Jaw Opening — 0.9″ (23 mm) diameter, useful for narrow or bundled conductors
- Non-Contact Frequency Measurement — Up to 10 kHz through the clamp jaws
- Voltage Measurement — AC/DC up to 600 V
- Resistance & Capacitance Measurement — For circuit component testing
- Continuity & Diode Test Modes — Easy checks for wiring and diodes
- Display & Bargraph — 4000-count LCD plus 40-segment bargraph
- Overload Protection — Supports DC overload up to 400 A
- Compact & Versatile — Small body with full functionality for field use
Includes
- Battery
- manual
