Multimeters, clamp meters, power meters and energy monitors.
A comparison of four instruments that publish DC power measurement, covering jaw access, safety category, logging depth and where each one stops being the right tool.
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A comparison of four clamp meters for situations where a flexible current probe is needed, based on what each listing states about the probe, the jaw, and the measurement functions.
Read Guide→Three clamp meters and clamp kits assessed for VFD current and voltage work, with the listing facts that matter and the ones that are missing.
Read Guide→A comparison of three clamp meters suited to EV charging installation work, with the specification gaps the listings leave open.
Read Guide→A comparison of five clamp meters that publish DC current measurement, aimed at motor checks rather than panel work.
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One conductor in the jaws, centered, jaws fully closed, zeroed for DC, and a reading you compare against the nameplate.
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AC/DC True-RMS, inrush, capacitance, temperature and micro-amps for flame sensors. The HVAC clamp is a multimeter with jaws.
Read Guide→AC or AC/DC, jaw size for your cables, True-RMS, the right CAT rating, and the extras (inrush, temperature, flex probe) your work uses.
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Eleven clamp meters compared on what the jaw measures, stated maximum current, True RMS and resolution down to 0.01 mA.
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Clamps that resolve microamps, for nuisance GFCI trips, insulation leakage and ground faults. Fluke 368 FC, UNI-T UT251C+ and TEMPO CMA-360B compared.
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A mini AC/DC clamp meter to 80 A with a 4000-count display and a full digital multimeter function set, for small loads and tight spaces.
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A 400 A True RMS AC/DC mini clamp with a 23 mm jaw, 1 mA AC resolution, frequency to 10 kHz through the jaws, a 40-segment bar graph and auto zero.
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A mini True RMS clamp meter with a 30 A AC/DC current range and 0.1 mA resolution, built for control circuits, sensors and other low-current work.
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A True RMS clamp meter with a retractable pincer arm, 0.01 A resolution, AC/DC current to 600 A, voltage to 1000 V and Bluetooth to the testo Smart app.
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A 600 A AC/DC clamp meter with two type K inputs, a built-in infrared thermometer, LoZ, low-pass filter, inrush capture and a DC microamp range for flame rods.
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The True RMS AC-only member of the Extech MA440 family: 400 A AC current, non-contact voltage detection and a 4000-count display in a compact body.
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A 400 A True RMS AC/DC clamp meter with a 40000-count dual display, non-contact voltage detection, inrush capture, frequency, duty cycle and continuity.
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A True RMS clamp meter reading AC and DC current to 1500 A through a compact 17 mm jaw, with a low-pass filter for drive signals and a built-in NCV detector.
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A pocket-sized AC/DC clamp meter to 200 A with a built-in non-contact voltage detector, data hold, min/max, relative mode and auto power off.
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A clamp accessory that plugs into a multimeter and outputs 1 mA per amp of AC current, with a 20 mm conductor opening and a CAT III 600 V rating.
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A True RMS clamp meter reading AC and DC current to 2000 A through a 58 mm jaw, with voltage, frequency, resistance to 400 kΩ and inrush capture.
Read Review→A True RMS HVAC clamp meter: 200 microamp DC for flame rods, resistance to 60 kΩ for thermistors, thermocouple temperature and Fluke Connect over Bluetooth.
Read Review→Multimeters for voltage, resistance and components; clamp meters for current without breaking the circuit.
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