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        Learn more by watching our Major Tech MT25-COMBO-1 | MT723 Clamp Meter + MT500 Insulation Meter + MT310 ECLB Tester video.

        Additional related video.

        Additional related video.

        Major Tech MT25-COMBO-1 | MT723 Clamp Meter + MT500 Insulation Meter + MT310 ECLB Tester

        The MT723 Clamp Meter provides True RMS readings for AC/DC current up to 400A and voltage up to 1000V. It also measures frequency, resistance, capacitance, and temperature from -20°C to 1000°C. Features include inrush current mode, VFD support, NCV detection, a built-in flashlight, and a 30mm clamp opening—ideal for diverse electrical testing.

        The MT500 Insulation Tester offers 250V, 500V, and 1000V insulation testing with 1mA output current. It includes continuity and resistance ranges, a live circuit warning, LED-backlit scale, and a lock-down test button for easy and safe operation.

        The MT310 ELCB Tester checks socket wiring and simulates earth leakage faults with selectable trip currents (10–35mA). Neon indicators show wiring status, and an integrated AC voltage display offers added test feedback.

        MT723 Features

        • True RMS current/voltage readings up to 400A and 1000V
        • Measures frequency, resistance, temperature, and capacitance
        • Includes inrush mode, NCV detection, flashlight, and VFD support
        • 30mm clamp size with rugged double-moulded housing

        MT500 Features

        • Insulation test voltages at 250V, 500V, and 1000V
        • Live circuit warning with AC voltage display
        • Lock-down test button and LED-backlit scale
        • Tough rubber overmould for durability

        MT310 Features

        • Selectable trip current from 10mA to 35mA
        • Neon wiring indicators and AC voltage display
        • Simulates earth leakage for ELCB testing
        • CAT IV 300V rated with compact, safe design

        FAQ

        Q: Can the MT723 measure inrush current and VFD voltage?
        A: Yes, it supports both functions for advanced testing.

        Q: Is the MT500 safe for live circuits?
        A: Yes, it provides a live circuit warning and voltage display.

        Q: How does the MT310 test ELCBs?
        A: Plug it into a socket, set the trip current, and press the button to simulate a fault.

        (MT25-COMBO-1)

        100-Day Fuss-Free Returns
        We want you to love what you buy—but if you change your mind, that’s okay too. That’s why Sparky Direct offers a 100-day money-back guarantee.

        • Items must be unused, with all parts, accessories, and original packaging.
        • We can’t accept returns if the product is damaged, incomplete, or not in resalable condition.
        • Proof of purchase is required.
        • Return shipping is the responsibility of the customer. 

        If your item isn’t in its original condition, please contact us before returning it—we might save you time and money.

        All products come with a manufacturer’s or supplier’s warranty

        • Warranty starts from the Invoice Date
        • Some suppliers offer in-home warranties and handle claims directly, so you won’t need to uninstall or return the product. Chat with us to check if your product qualifies.
        • Sparky Direct isn’t responsible for losses caused by product failure.
        • Warranties are void if products aren’t installed by a licensed electrician.

        Damaged or Faulty Goods
        If your order arrives damaged or is faulty, let us know within 24 hours.

        • Sparky Direct will pay for return shipping via an emailed return label.
        • If the fault is confirmed, we will send you a replacement item or provide a refund.

        Contact us via our chat to arrange the return.

        Exclusions
        We can’t accept returns for:

        • Items that have been installed, modified, or used
        • Clearance, End of life, Discontinued, or special order items (unless faulty)
        • All PPE Items
        • Goods returned without original packaging or proof of purchase

        How to Request a Return

        1. Contact our customer service team with your order number.
        2. Confirm it’s eligible under our return or warranty policy.
        3. Pack the item securely and return it using a trackable service.
        4. Once we receive and inspect it, we’ll process your refund or replacement.

        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.

        MT390 Function Range Resolution Accuracy
        Continuity 4-400.0Ω 0.001Ω ±(1.5% + 30 Digits)
        Insulation Resistance 125/250/500/1000V 0.125 – 4000MΩ ±(2% + 10 Digits)
        Loop Range 0 – 999Ω 0.01Ω ±(4% + 6 Digits)
        PSC/PFC 0.23A – 23000A Derived from Loop and Voltage measurement  
        RCD x 5, x 1, x 1/2, auto ramp mA   15/30/50/100/200/500/650/1000mA
        Measuring Range 2000ms   ±(1% + 3)
        Voltage Measurement 80V – 500V 1V ±(2% + 2 Digits)
        Frequency Response 45-65Hz 1Hz ±(2Hz)
        Earth Resistance 99.99/2000Ω 0.01Ω ±(2% + 30 Digits)
        Short Circuit Current >200mA
        Rated Current 1mA
        Loop Impedance L-PE, L-PE(ATT), L-N, L-L
        Test Current 8.0A – 25.0A
        Phase Angle 0° to 180°
        PC Interface USB/Bluetooth
        Display 3.5″TFT Display
        Memory SD Card
        Back Light Yes
        Enclosure Over Moulded case
        Low Battery Indication Yes
        Batteries 8 x AA
        Weight 631g
        Dimensions 220 x 94.6 x 60.5mm
        Safety Specs IEC61010-1 CAT IV 400V
        MT766 Function Range Resolution Accuracy
        DC Current 60.00A – 600.0A 10mA ± (2.8% + 8 Digits)
        AC Current 60.00A – 600.0A 10mA ± (1.5% + 10 Digits)
        DC Voltage 600.0mV – 1000V 1mV ± (1.2% + 5 Digits)
        AC Voltage 6.000V – 1000V 1mV ± (1.5% + 5 Digits)
        Resistance 600.0Ω – 60.00MΩ 0.1Ω ± (1.5% + 6 Digits)
        Frequency 5Hz – 9.999kHz 1mHz ± (1.5% + 6 Digits)
        Capacitance 999.9nF – 99.99mF 0.1nF ± (4% + 6 Digits)
        Temperature K-Type -20 to 1000°C 0.1°C ± (3°C + 3 Digits)
        IR Temperature D:S 4:1 -30.0 to 350.0°C 0.1°C ± (2°C + 2 Digits)
        Duty Cycle 20.0% to 80.0% 0,1% ± (1.2% + 5 Digits)
        True RMS Measurements ACV, ACA
        AC Bandwidth 50 – 1000Hz
        Digital Display 6000
        Bargraph Yes
        Non-Contact Voltage (NCV) Yes
        Overrange indication Yes
        Continuity Yes
        Diode test Yes
        Jaw size 33mm
        Input impedance >10MΩ DCV & >10MΩ VAC
        Min Max Yes
        Data Hold Yes
        Back Light Yes
        Enclosure Double injection moulding
        Low battery indication Yes
        Power source 3 x LR03
        Weight 350g
        Dimensions 239 x 66 x 44mm
        Safety Specs IEC61010-1 CatIV 600V

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

        Brand Major Tech
        SKU MT25-COMBO-1
        View Datasheet
        TYPE VALUE
        Brand Major Tech
        Combo MT723 + MT500 + MT310
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