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Extech MA443 400A True RMS AC Clamp Meter

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  • 30mm jaw for measuring AC current up to 400A
  • True RMS & Type K-Temperature probe included
  • Integrated Non-Contact Voltage Detector & Test Leads for Digital Multimeter functions

rrp £58.05

now £46.44 (Ex. VAT) £55.73 (Inc. VAT)

rrp £58.05


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  • Description

    Extech MA443 400A True RMS AC Clamp Meter

    The Extech MA443 400A True RMS AC Clamp Meter is perfectly designed to obtain highly accurate readings of non-sinusoidal waveforms even on inconsistent circuits. Utilising a 30mm (1.2") jaw, True RMS and a Type-K Temperature probe the meter can measure AC current up to 400A, AC/DC Voltage to 600V, and temperatures between -40˚C and 1000˚C (1˚).

    With an integrated non-contact voltage detector and multimeter functions, the Extech MA443 is suited for a variety of tasks. The large tactile dial and button interface employed by the device, in addition to the backlit LCD display, provide an intuitive operating system for the user. Data Hold, MAX/MIN functions, auto power off and low battery indicator are all included as standard.

    Battery powered & compact for easy handheld operation, the Extech MA443 has an extremely convenient built-in flashlight, comes complete with a pouch and is rated CAT III 600V. This clamp meter is the upgraded version of the Extech MA440 model.

    Extech part number: MA443

    Key Features

    • 30mm (1.2") jaw size measures AC current and fit conductors up to 500MCM
    • Built in Non-Contact (NCV) detector
    • Multimeter capable of measuring Resistance, Capacitance and Resistance
    • True RMS
    • Relative mode for Capacitance
    • Data Hold, MAX / MIN, Auto Power off and Low Battery indicator functions
    • Large LCD display with backlight
    • Built in flashlight
    • CAT III 600V
  • Specification

    • AC Current Range: 400.0A (1mA) True RMS
    • AC Current Accuracy: Current Accuracy: AC ±1.8%
    •  AC Voltage: 600V (1mV)
    • DC Voltage: 600V (-0.1mV) True RMS
    • Voltage Accuracy: AC ±1.2%, DC ±0.8%
    • Non-Contact Voltage (NCV): 100 to 600V
    • Resistance: 40MΩ (0.1Ω)
    • Capacitance: 40mF (0.01nF)
    • Frequency: 1MHz (0.01Hz)
    • Temperature (Type K - meter range): -40˚ to 1000˚C(1˚) (-40˚ to 1832˚F)


    General Information:

    • Duty Cycle: Yes
    • Diode / Continuity: Yes
    • Dimensions: 228 x 77 x 41mm (9 x 3 x 1.6")
    • Weight: 265g (9.3oz)
  • Supplied Accessories

    • Extech MA443 400A True RMS AC Clamp Meter
    • Type-K Temperature probe
    • Test Leads
    • 3 x AAA Batteries
    • Pouch
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  • Delivery Information

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    We use DPD/Interlink for all larger items and Royal Mail for smaller items and accessories. With DPD/Interlink you will receive a 1 hour delivery window on the day of delivery via e-mail/text and a notification 15 minutes before arrival so you will not have to wait around all day. You can even manage your booking online and re-arrange delivery for another date or arrange the goods to be left with a neighbour of your choice.

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    • Saturday Pre-Noon Delivery (on select products only) at £14.50*
    • Sunday Pre-Noon Delivery (on select products only) at £14.50*

    *UK mainland only

    NOTE! For next working day or Saturday/Sunday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only (this might exclude certain areas in the north of Scotland).

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    Test-Meter.co.uk exports to many countries all over the world. Prices for shipping vary on location and weight/dimensions. Costs are calculated for certain countries at the checkout. If your country is not included in this list please e-mail admin@test-meter.co.uk with your name, address and the items you would like to order for an accurate shipping quote or go to http://www.test-meter.co.uk/test-equipment-export for more information.

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