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Description
MAJ MT7701000A AC Clamp Meter 1000A AC Clamp Meter Overview The MT770 is a 1000A AC True RMS Clamp Meter with indication on a large backlit LCD display, providing fast sampling time with high accuracy. The meter measures 1000V AC DC, temperature, frequency, capacitance and resistance measurements, plus 100ms Inrush current and Peak Voltage value. The VFD function allows the user to measure stable voltage in high frequency applications of Variable Frequency
1000A AC Clamp Meter
1000A AC Clamp Meter
Overview
The MT770 is a 1000A AC True RMS Clamp Meter with indication on a large backlit LCD display, providing fast sampling time with high accuracy. The meter measures 1000V AC/DC, temperature, frequency, capacitance and resistance measurements, plus 100ms Inrush current and Peak Voltage value. The VFD function allows the user to measure stable voltage in high frequency applications of Variable Frequency Drives, while the Low Z range function has a low pass filter to eliminate errors caused by “Ghost†voltages. Added features include Relative mode for Capacitance Zero and DCV, ACV and ACA offset adjustment, Non-Contact voltage detection, Data hold function and a built-in flashlight for dimly lit areas. Housed in a modern double moulded rubber housing.
Features
- 6000 count backlit LCD display
- Ø33mm Cable Clamp size
- Measurement of DC voltage and AC voltage up to 1000V
- Capacitance to 100mF
- Temperature measurement from -20â°C to 1000â°C
- INRUSH Current Measurements
- VFD – Variable Frequency Drive voltage value
- LoZ – Low impedance mode prevents false readings due to “Ghost†voltage
- NCV – Non-Contact Voltage Detector
- Built-In Flashlight
- Continuity buzzer and Diode Test
- Peak Mode and Data Hold function
- Auto Power Off
Accessories:
- Test Leads
- Type-K Wire Probe
- Type-K Adaptor
- Carrying Case
- 3 x AAA Batteries
- Instruction Manual
Specifications
| AC Current |
600.00A – 1000.0A |
|---|---|
| AC current resolution |
10mA |
| AC Current accuracy |
±(2.5% +8) |
| DC Voltage |
600.00mV – 1000.0V |
| DC Voltage resolution |
1mV |
| DC Voltage accuracy |
±(1.5% +2) |
| AC Voltage |
6V – 1000V |
| AC Voltage resolution |
1mV |
| AC voltage accuracy |
±(1.5% +5) |
| Resistance |
600.0Ω – 60.00MΩ |
| Resistance resolution |
0.1Ω |
| Resistance accuracy |
±(1.5% +2) |
| Frequency |
9.999Hz – 99.99kHz |
| Frequency resolution |
0.01Hz |
| Frequency accuracy |
±(1.2% +5) |
| Capacitance |
60.00nF – 100.0mF |
| Capacitance resolution |
0.01nF |
| Capacitance accuracy |
±(3.0% +5) |
| Temperature |
-20 to 1000°C |
| Temperature resolution |
0.1°C |
| Temperature accuracy |
±(5.0°C +3) |
| Duty Cycle |
10.0% to 90.0% |
| Duty Cycle resolution |
0.1% |
| Duty Cycle accuracy |
±(1.2% +2) |
| True RMS Measurements |
ACV, ACA |
| AC Bandwidth |
50Hz to 400Hz |
| Digital Display |
6000 |
| Non-Contact Voltage (NCV) |
Yes |
| Over-range indication |
Yes |
| Continuity |
Yes |
| Diode Test |
Yes |
| Jaw size |
33mm |
| Input Impedance |
˃10MΩ DCV & ˃10MΩ VAC |
| Low Frequency Input |
Yes |
| Min Max |
Yes |
| Peak hold |
Yes |
| Data Hold |
Yes |
| Back Light |
Yes |
| Enclosure |
Double Injection moulding |
| Low battery indication |
Yes |
| Power source |
3 x LR03 (AAA) |
| Weight |
350g |
| Dimensions |
250 x 78 x 40mm |
| Safety Specs |
IEC61010-1 CatIV 600V |
Downloads
Additional Information
| Device | Clamp Meter |
| Type | 1000A AC |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Product Reviews
★★★★★ 5
Well made shelves
Color: Dark Brown, Size: 15.7 inch
Cute and easy to attach to the wall.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026
★★★★★ 5
Must buy!
Color: Dark Brown, Size: 15.7 inch
Very nice and sturdy!
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Great shelves that are easy to hang
Color: Black, Size: 4 inch, Color: Black, Size: 4 inch
These worked perfectly in my bathroom! Love them. They were easy to hang and look great!
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Stylish and functional, but limited by size.
Color: Walnut, Size: 4 inch
These SRIWATANA small floating shelves are a great addition for anyone looking to add a touch of style and function to small spaces. The 4-inch walnut wood design is compact yet sturdy, perfect for displaying mini plants, candles, or collectibles. Installation is straightforward, and the finish gives a warm, rustic look that works well in bedrooms, bathrooms, kitchens, or offices. Ideal for minimalist or modern decor. Just keep in mind they're best suited for lightweight items.
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Reviewed in the United States on June 20, 2025
★★★★★ 5
Perfect size
Color: White, Size: 4 inch, Color: White, Size: 4 inch
These little shelves are perfect for my soap dispenser and lotion for my pedestal sink! The sink top was not large enough. Problem solved!
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Reviewed in the United States on April 29, 2026