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Learn more by watching our Major Tech MT878 | Stud/Metal Finder with Multimeter 400A video.
Additional related video.
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.
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 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.
To initiate a warranty claim:
Return to Sparky Direct
Ship the meter back to Sparky Direct along with:
Please ensure the unit is securely packaged to prevent damage in transit.
Forwarded for Assessment
Upon receiving your meter, we will forward it to Major Tech’s authorised service centre for inspection, testing, and calibration.
Major Tech’s service lab will assess the returned unit to determine:
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.
| 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 |
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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