allsun
allsun AC/DC Clamp Meter Multimeter 400A True RMS Current Tester
Bottom line: The allsun AC/DC Clamp Meter Multimeter 400A True RMS Current Tester: Hall Effect sensor reads both AC and DC up to 400A (600A overload); main trade-off: no built-in display: needs a separate multimeter to read output.
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Pros & Cons
Pros
- ✓ Hall Effect sensor reads both AC and DC up to 400A (600A overload)
- ✓ Dual sensitivity ranges: 10mV/A at 40A, 1mV/A at 400A
- ✓ True RMS conversion with stated +/-2.5% accuracy
- ✓ 33mm jaw clamps conductors up to 28mm without breaking the circuit
- ✓ 0-400mV DC output feeds any third-party multimeter
Cons
- ✗ No built-in display: needs a separate multimeter to read output
- ✗ Narrow 0C-40C operating range limits cold-shop or outdoor use
- ✗ Requires manual one-touch zero calibration to clear DC drift
- ✗ CAT III 600V caps it below CAT IV service-entrance work
SpecPicks Verdict
SpecPicks scored allsun AC/DC Clamp Meter Multimeter 400A True RMS Current Tester using a rating × review-volume × price-fit model applied to published specs and reviews across the tools & maintenance category. allsun's tools & maintenance lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for tools & maintenance: PC towers accumulate significant dust in 3–6 months, so cleaning frequency drives cordless vs. canned-air tradeoff decisions. Match the device's RPM or CFM rating to your case size, and confirm battery runtime covers a full tower cleaning before ordering. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- 【PRECISION AC/DC CLAMP METER W/ HALL EFFECT TECH】 Accurately measure AC/DC currents up to 400A (600A overload) using advanced Hall Effect sensor technology. Features True RMS conversion, dual-range sensitivity (40A: 10mV/A; 400A: 1mV/A), and ±2.5% accuracy—suitable for HVAC, automotive diagnostics, and industrial circuits.
- 【NON-CONTACT CURRENT TESTING & SAFETY】33mm jaw opening safely measures conductors up to ∅28mm without circuit interruption. CAT III 600V rated with tactile barriers and double insulation. Includes polarity detection and CE certification for shock prevention.
- 【BATTERY & ZERO CALIBRATION】 Visual battery alert (Green/Red LED) warns at ≤7.5V. One-touch zero calibration eliminates DC drift errors. Auto-off function (dual OFF positions) extends 9V battery life during storage.
- 【PROVEN TO WORK WELL WITH OTHER 3RD PARTY MULTI-METERS】Seamless integration with any multimeter via DC voltage output (0-400mV). Features dedicated range switch, AC/DC mode selection, and trigger-operated jaws. Auto-calculates current using Reading/Sensitivity formula.
- 【PORTABLE INDUSTRIAL-GRADE TESTER】Compact handheld design for tight spaces. Withstands 0°C–40°C environments. Perfect for electrical troubleshooting, motor maintenance, factory QA, and energy audits. Includes wipeable casing for durability.
Full Specifications
| Brand | allsun |
|---|---|
| Color | Black and Blue |
| Style | Mini Clamp Meter |
| Style Name | Mini Clamp Meter |
| Unit Count | 1 Count |
| Part Number | EM-264 |
| Power Source | Battery Powered |
| Compatibility | Switch |
| Measurement Type | Multimeter |
| Compatible Devices | Multimeter |
| Full listing title | allsun AC/DC Clamp Meter Multimeter 400A True RMS Current Tester, Hall Effect Sensor, CAT III 600V, Low Battery Indicator, Auto Zero, 1mV/A and 10 mV/A Sensitivity |
Ready to buy?
allsun AC/DC Clamp Meter Multimeter 400A True RMS Current Tester, Hall Effect Sensor, CAT III 600V, Low Battery Indicator, Auto Zero, 1mV/A and 10 mV/A Sensitivity is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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