pocket clamp meter

Many pocket clamp meters measure a broad set of electrical values, typically including clamp-on AC current, AC and DC voltage, resistance, capacitance, diode test, continuity, frequency (Hz), and live/zero-wire detection (NCV). Exact capabilities vary by model.

Clamp-style pocket meters commonly use a double-open jaw that accommodates wire diameters up to about 1.42 inches (36 mm) for non-intrusive current measurement. Actual jaw sizes vary by model.

Typical pocket clamp meters are powered by two AAA batteries. Many product listings note the batteries are not included.

Common features include a 4000-count LCD display with backlight, data-hold, and auto power-off (often after about 15 minutes) to conserve battery life. Specific feature sets vary by model.

Many pocket clamp meters include non-contact voltage (NCV) detection with a dedicated NCV button, plus functions for identifying live/zero (hot/neutral) wires. Feature availability varies by model.

Reported ranges vary by model but commonly include: DC voltage from 400 mV up to 600 V, AC voltage from about 4 V to 600 V, AC current ranges such as 40 A up to 400 A (clamp), frequency from about 10 Hz to higher MHz ranges, resistance from 400 Ω up to 40 MΩ, and capacitance from 1 nF up into the millifarad range. Exact ranges depend on the meter's specifications.

Many pocket clamp meters use ABS plastic housings and are designed for portability and basic impact resistance. Manufacturers often emphasize protective, travel-friendly designs to withstand bumps and everyday use, though ruggedness varies by model.