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        Video

        Learn more by watching our Major Tech MT878 | Stud/Metal Finder with Multimeter 400A video.

        Additional related video.

        Description

        Major Tech MT878 | Stud/Metal Finder with Multimeter 400A

        The Major Tech MT878 is a multi-purpose tool that combines a stud and metal detector, live wire finder, and a fully functional auto-ranging multimeter. It’s great for locating studs behind walls, detecting both ferromagnetic and non-ferromagnetic metals, and identifying unshielded live AC wires. Multi-colour LEDs and an audible buzzer provide instant detection feedback, making it easy to use on-site.

        As a true RMS multimeter, it measures AC/DC voltage, AC/DC current, resistance, continuity, capacitance, frequency, duty cycle, temperature, and diodes. It includes a LoZ setting to eliminate ghost voltages for more accurate readings. For high-current applications, it supports the MT783 clamp adaptor to extend measurement up to 400A AC/DC. The 4000-count backlit LCD with a bar graph ensures clear, real-time readings, and a tilt stand makes hands-free operation convenient.

        Major Tech MT878 Features

        • 4-in-1 Detector & Multimeter – Combines stud, metal, and live wire detection with full multimeter functionality.
        • True RMS Measurements – Provides precise AC voltage and current readings.
        • LoZ Voltage Setting – Eliminates ghost voltages for more accurate diagnostics.
        • Clamp Adaptor Compatible – Supports MT783 clamp for 400A AC/DC current measurement.
        • 4000-Count Backlit LCD – Displays clear readings with a 41-segment bar graph.
        • Stud & Metal Detection – Scans studs (up to 38mm), ferromagnetic metals (76mm), and live AC wires (50mm).
        • Auto Power Off – Conserves battery life after 15 minutes of inactivity.
        • CAT III 600V Safety Rating – Complies with UL 61010-1 standards for safe use.

        MT878 FAQ

        Q: What is the maximum current measurement capacity?
        A: The meter supports up to 400A AC/DC when used with the optional MT783 clamp adaptor.

        Q: Can this meter detect live electrical wires?
        A: Yes, it detects unshielded live AC wires up to 50mm deep.

        Q: Does the meter include a backlit display?
        A: Yes, it features a 4000-count backlit LCD with a bar graph for easy readability.

        (MT878)

        Warranty

        Warranty starts from Invoice Date

        Domestic Use: 2 Year
        Commercial Use: 2 Year
        Warranty Method: Return to Sparky Direct

        All Major Tech Meters sold through Sparky Direct are covered by the manufacturer’s warranty. If you believe your meter is faulty or defective, you may request an assessment under this warranty policy.

        How to Lodge a Warranty Claim

        To initiate a warranty claim:

        1. Return to Sparky Direct
          Ship the meter back to Sparky Direct along with:

          • A copy of your proof of purchase
          • A brief description of the issue
          • Your contact details

          Please ensure the unit is securely packaged to prevent damage in transit.

        2. Forwarded for Assessment
          Upon receiving your meter, we will forward it to Major Tech’s authorised service centre for inspection, testing, and calibration.

        Assessment Process

        Major Tech’s service lab will assess the returned unit to determine:

        • Whether the fault is due to a manufacturer’s defect (covered under warranty), or
        • If the issue is the result of user error or no fault is found.

        Outcomes

        • If approved under warranty: The product will be repaired or replaced at no cost to you.
        • If not covered under warranty: The lab may offer repair services, which will be quoted and billed directly to you by the service provider.

        Important Notes

        As Major Tech’s service labs are independent providers, Sparky Direct cannot govern or guarantee turnaround times or any costs incurred for repairs outside of warranty coverage.

        Please allow up to 7-14 working days for the return of your product.

        Features
        Function Range Resolution Accuracy
        DC Voltage 40.00mV – 600V 0.01mV ±(0.5% +8)
        AC Voltage 40.00mV – 600V 0.01mV ±(1.2% +3)
        DC Current 400.0μA – 10A 0.1μA ±(2.0% +3)
        AC Current 400.0μA – 10A 0.1μA ±(2.5% +3)
        Current Clamp 40.00A – 400A 0.01A ±(2.8% +10)
        Resistance 400.0Ω – 40MΩ 0.1Ω ±(2.5% +8)
        Frequency 9.999Hz – 9.999MHz 0.001kHz ±(1.2% +5)
        Capacitance 99.99nF – 10mF 0.01nF ±(3.5% +5)
        Temperature 18°C – 1000°C 1°C ±(1.5% +50°C)
        Square Wave Output 50Hz – 10kHz ±(1.2% +5)
        Size 165 x 70 x 45mm
        Weight 326g
        Function Range
        Insulation Class 2, Double Insulation
        Diode Test Test current approx. 1mA open circuit voltage of 3V typical
        Continuity Test Buzzer if the resistance is <50Ω
        Display 4000 counts backlit LCD with bar graph
        Measurement Rate 3 readings per second, nominal
        Auto Power Off Approx. 15 minutes
        Input Impedance >10MΩ AC and DC Voltage
        AC Response True RMS
        AC Voltage Bandwidth 50Hz to 1kHz
        AC Current Bandwidth 50Hz to 400Hz
        Battery 1 Ă— 9V
        Safety Complies with UL 61010-1 v.3 for measurement Category III 600V, Pollution Degree 2
        Specifications

        These specifications and characteristics outline physical, mechanical, electrical details.

        Brand Major Tech
        SKU MT878
        Barcode # 6008229041532
        Package Weight 0.654kg
        Package Width 0.130m
        Package Height 0.080m
        Package Length 0.205m
        TYPE VALUE
        Type Stud Finder/Multimeter
        Brand Major Tech
        Voltage (V) 600V AC/DC
        Battery 9V alkaline
        Current 400A AC/DC
        Insulation Class 2
        Resistance 400Ω - 40MΩ
        Stud Range 0-38mm
        Ferro Metal Range 0-76mm
        Non-Ferro Metal Range 0-38mm
        Unshielded AC Wire Range 0-50mm
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