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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
4.7 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Fun toy that is tough!
Pattern Name: Cage Ball, Size: Large - 4 Inch / 8.5 oz
This is a great ball that my dog loves and he has not destroyed it!k
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2026
★★★★★ 5
Strongest iv found so far
Pattern Name: Ball, Size: Large - 3 Inch / 12 oz
It lasted longer than most but it’s in pieces after 2 weeks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2026
★★★★★ 5
Awesome Ball
Pattern Name: Ball, Size: Large - 3 Inch / 12 oz
This ball is so awesome my dog can't chew it all..and was not expensive
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
★★★★★ 1
A total joke.
Pattern Name: Cage Ball, Size: Large - 4 Inch / 8.5 oz
I was so hopeful and really wanted this to be as good as the sellers claimed. After all, they boast of a lifetime replacement (a joke and be sure to read the ridiculous terms lol). I have a "pocket pitty" and she loves rubber toys. There is not much I have found that can withstand her force; however, reading reviews AND seeing their warranty, I wanted to give it a try. Typically, I stick with Java wood and XL super dense knotted ropes, as that has been the only thing that can last any real amount of time. Thankfully, she never goes after our stuff or household items/furniture, just her toys.
The ball arrived. I checked it over. It looked semi promising. I was hopeful. The design does allow for them to leverage their paw strength by getting it between the rubber bars and then pull with their teeth. Within 3 minutes of her having it, she already had a bar ripped off. Within 5 minutes, she had 3 bars ripped off. Don't get me wrong, she had a blast. But this is by no means strong enough for an actual aggressive chewer. Perhaps there is just not anything rubber that can handle her jaws, but now I can't get a replacement because the warranty only covers if the product is defective. It doesn't cover chewing damage (on any of their products). The advertising is very misleading so be aware. Why a replacement if she will just destroy it again you may wonder? She loves to go after a ball, but now I know she can kill this one, I keep them in a drawer and only let her play fetch with it while supervised.
I will say though, I you have a puppy, I think this would be great for them as long as they are not extra large. The material has give, which is nice. But if you have a real aggressive chewer, don't waste the money.
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Reviewed in the United States on March 7, 2023
★★★★★ 4
Not indestructible, but is very tough.
Pattern Name: Ball, Size: Large - 3 Inch / 12 oz
My dog destroyed this, but it took a little longer than it usually does. Would love to know how the lifetime replacement works. There is no information that I see on how to contact the seller.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 8, 2025