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Description
MAJ MT723400A AC DC Clamp Meter 400A AC DC Clamp Meter Overview The MT723 is a 400A AC DC 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
400A AC/DC Clamp Meter
400A AC/DC Clamp Meter
Overview
The MT723 is a 400A AC/DC 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. 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
- 4000 count backlit LCD display
- Ø30mm 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
- 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
| DC Current |
40.00A – 400.0A |
|---|---|
| DC Current resolution |
0.01A |
| DC Current accuracy |
±(2.5% +8) |
| AC Current |
40.00A – 400.0A |
| AC current resolution |
0.01A |
| AC Current accuracy |
±(2.5% + 5 Digits) |
| DC Voltage |
400mV – 600.0V |
| DC Voltage resolution |
0.1mV |
| DC Voltage accuracy |
±(0.8% + 2 Digits) |
| AC Voltage |
400mV – 600.0V |
| AC Voltage resolution |
0.1mV |
| AC voltage accuracy |
±(1.0% + 30 Digits) |
| Resistance |
400.0Ω – 40.00MΩ |
| Resistance resolution |
0.1Ω |
| Resistance accuracy |
±(1.0% + 4 Digits) |
| Frequency |
10Hz – 10kHz |
| Frequency resolution |
1Hz |
| Frequency accuracy |
±(1.5% + 2 Digits) |
| Capacitance |
40.00nF – 100.0μF |
| Capacitance resolution |
0.01nF |
| Capacitance accuracy |
±(4.0% + 20 Digits) |
| Temperature |
-20 to 760°C |
| Temperature resolution |
0.1°C |
| Temperature accuracy |
±(3% + 5°C Digits) |
| Duty Cycle |
0.5% – 99.9% |
| Duty Cycle resolution |
0.001 |
| Duty Cycle accuracy |
±(1.2% + 2 Digits) |
| AC Bandwidth |
50.0Hz to 60.0Hz |
| Digital Display |
4000 |
| Over-range indication |
Yes |
| Continuity |
Yes |
| Diode Test |
Yes |
| Jaw size |
30mm |
| Input Impedance |
˃10MΩ DCV & ˃10MΩ VAC |
| Peak hold |
Yes |
| Data Hold |
Yes |
| Back Light |
Yes |
| Enclosure |
Double Injection moulding |
| Low battery indication |
Yes |
| Power source |
3x AAA |
| Weight |
183g |
| Dimensions |
197 x 70 x 40mm |
| Safety Specs |
IEC61010-1 CatIII 600V |
Downloads
Additional Information
| Keywords | major tech, MT723, clamp meter, clamp, meter, compact, digital |
| Device | Clamp Meter |
| Type | 400A | AC/DC |
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
4.2 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Works like it should, easier to use if you keep the dosing funnel on the basket
Color: Black, Color: Black
With a weighted top and storage base, this is sturdy metal with what appear to be standard acupuncture needles. It comes with a set of spare needles in a plastic tube.
I find it much easier to use if I keep my dosing funnel on the basket, followed by a quick clearing of the funnel using a weighted espresso distribution tool with the maximum extension before popping off the funnel for my final tamp. See photo.
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Reviewed in the United States on March 11, 2026
★★★★★ 5
Simple tool that makes a difference
Color: Black
This tool really improved my espresso. It’s easy to use and helps distribute the coffee evenly, which makes the shots come out better. It feels solid and well made. Small but very useful.
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Reviewed in the United States on March 18, 2026
★★★★★ 4
It's not bad, but one minor issue FOR ME
Color: Black
There is nothing generally not to dislike about this WDT. Priced right. Good quality materials. But there are two issues that made me choose a different one, even before using this one:
The entire top and bottom are straight cylindrical pieces. Ergonomically I would have to use more, larger muscle movement from my wrist to stir the beans. Not a big deal for some, but with other similar choices at the same price, I thought I would be better off with a different model. The second issue is that then the needles are placed back in the tall "recepticle", the top piece merely sits on top and isn't secured. For some that might be good because the top can be lifted out without any opposing force. OTOH, if it tips over it might expose the needles or need two hands to get it back together. If I didn't have other choices, I'd keep this one. I knew, without even using it that it wasn't for me... but it might be for someone else. Again, the materials are quite good and you can tell by the heft of the item.
I elected to go with a similar concept, but a more contoured design with a knurled top and brushes on the inside of the recepticle to hold the needles and top in place, but also easy to extract for use. My choice over the Tiverain WDT was personal and has nothing to do with the quality of the product.
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Reviewed in the United States on February 9, 2026
★★★★★ 5
High quality and looks great
Color: Black
Works well, definitely deep enough. I like the stand- ease of lifting it off its base and then returning it without needing a second hand. Has a modern sleek look and it’s heavy in a good way. Feels like quality build.
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Reviewed in the United States on December 10, 2025
★★★★★ 5
Nice accessory
Color: Black
Pretty useful tool for your espresso making experience
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Reviewed in the United States on February 21, 2026