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Martindale NC4 Dual-Sensitivity Non-Contact Voltage Detector

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  • Detects AC voltages across two ranges: 12V to 1000V; 50V to 1000V
  • Long tip glows red and there is an audible buzzer when voltage is detected
  • Compact, pen-style design with an integrated torch
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  • Description

    Martindale NC4 Dual-Sensitivity Non-Contact Voltage Detector

    Martindale NC4 in use

    The Martindale NC4 Dual-Sensitivity Non-Contact Voltage Detector is a useful AC voltage detector that can detect voltage across two different ranges: 12V to 1000V AC and 50V to 1000V AC. This makes it suitable for detecting live conductors in mains-powered installations, thus helping protect the user.

    Voltage presence is indicated by the Martindale NC4’s audible and visual indication. The long tip – designed to allow greater access to wiring – glows red when voltage is detected and a buzzer also sounds. The detector benefits from an integrated torch and has a pen-style design with a clip for the user’s belt or top pocket. It is powered by two AA batteries.

    Martindale part number: MARNC4

    Key Features

    • Ranges: 12V to 1000V AC, 50V to 1000V AC
    • Suitable for detecting live conductors
    • Long tip for identifying wiring
    • Audible and visible indication
    • Integrated torch
    • Pen-style design
    • Cat IV 1000V
    NC1 NC2 NC3 NC4
    AC Voltage Range 200-1000V 200-1000V 12-1000V
    Frequency Range 40-400Hz 40-400Hz 40-400Hz
    Magnetic field detection >10mT >10mT
    LED indication Yellow LED Red LED Yellow / Red LED Red LED
    Audible indication
    Power on pulse LED
    Low battery indication
    Auto Power Off
    LED torch
  • Specification


    • Maximum voltage: 1000V AC RMS
    • Voltage sensitivity range: 12 to 1000V AC RMS; 50 to 1000V AC RMS (default range)
    • Frequency range: 40 to 400Hz


    • Operating and storage temperature: 0˚C to 40˚C
    • Operating and storage humidity: ≤80% RH
    • Altitude: Up to 2000m
    • Pollution degree 2


    • Power: 2 x 1.5 AAA alkaline batteries (IEC LR03, NEDA 24A)
    • Battery consumption: 80mA approx.
    • Dimensions: 158mm x 20mm x 27mm
    • Weight: 55g approx.


    • Conforms to BS EN 61010-1:2010 Cat IV 1000V
    • Class II double insulation
    • IP rating: IP40 to BS EN 60529


    • Conforms to BS EN 61326-1
  • Supplied Accessories

    • Martindale NC4 Non-Contact Voltage Detector
    • Instruction booklet for Martindale NC4
    • 2 x AA batteries
  • Product Documents

    Product Attachments

    View FileMartincalde NCx Voltage Detector Range    Size: (874.34 KB)
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