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        Learn more by watching our Major Tech MT310 | Socket ELCB Tester video.

        Additional related video.

        Additional related video.

        Major Tech MT310 | Socket ELCB Tester

        Description:

        The MT310 Earth Leakage Tester is a compact, lightweight and easy to use socket and polarity and earth leakage tester that tests 3-wire 230V AC circuits and Earth Leakage Circuit Breakers. A unique feature is the AC Voltage indication on the LCD display. It also features a milli-amp (mA) trip setting with a separate test button. The unit can be set from 10mA, used for testing saturation and to eliminate nuisance tripping, to 35mA. The bright neon indication assists the user in confirming the wiring status of the circuit under test. Simply plug the MT310 into a wall socket and the results are clearly displayed. For additional safety, the MT310 is rated at CAT IV 300V and CAT III 600V.

        Features:

        • CAT IV 300V and CAT III 600V
        • Compact, lightweight and easy to use
        • Correct Wiring Indication with neon lights
        • Operates on 230V systems
        • AC Voltage measurement on LCD display
        • Fixed current settings from 10mA to 35mA
        • Separate test button
        • Double injection rubber housing

        (MT310)

        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.

        Specifications

        Function Range Accuracy
        Voltage measurement 150VAC to 245VAC ± (10%)
        Frequency response 50/60Hz  
        Test current 10, 15, 20, 25, 30, 35mA ± (1.75mA @ 230VAC)
        Socket polarity Yes
        Enclosure Double Injection moulding
        Display LCD
        Weight 130g
        Dimensions 130 x 69 x 32mm
        Safety Specs IEC61010-1 CAT III 600V

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

        Brand Major Tech
        SKU MT310
        Barcode # 6008229007217
        Package Weight 0.130kg
        Package Width 0.130m
        Package Height 0.032m
        Package Length 0.069m
        View Datasheet
        TYPE VALUE
        Type Tester
        Brand Major Tech
        Height (mm) 32
        Width (mm) 69
        Length (mm) 130
        4.0

        1 Reviews
        5 STARS
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        Write a review

        Bob Guthrie

        amended review on 24 May 2022

        My original post was in error and I wish to apologise and correct it. The spec in the manual clearly states the display with change to 0L if the real voltage exceeds 245V and this is what my unit does. The slight problem is my display seems to be about 5V above actual so it can display up to about 249V before tapping out (at around ~244.5V. Major Tech were good enough to call me and explain the situation.
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