--- product_id: 165735025 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" brand: "allsun" price: "€ 69.86" currency: EUR in_stock: true reviews_count: 9 category: "Allsun" url: https://www.desertcart.at/products/165735025-allsun-ac-dc-clamp-meter-multimeter-400a-true-rms-current store_origin: AT region: Austria --- # 400A AC/DC current range Low battery LED indicator CAT III 600V safety rating 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 **Brand:** allsun **Price:** € 69.86 **Availability:** ✅ In Stock ## Summary > ⚡ Clamp the current, not your budget — pro-grade testing made affordable! ## Quick Answers - **What is this?** 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 by allsun - **How much does it cost?** € 69.86 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/165735025-allsun-ac-dc-clamp-meter-multimeter-400a-true-rms-current) ## Best For - allsun enthusiasts ## Why This Product - Trusted allsun brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Non-Contact Clamp Design:** 33mm jaw opening for safe, interruption-free current measurement - • **Smart Battery Management:** Visual LED alerts & auto-off extend 9V battery life during downtime - • **Compact Industrial Durability:** Rugged, wipe-clean casing built for tight spaces and 0°C–40°C environments - • **Precision Hall Effect Sensing:** True RMS accuracy ±2.5% for reliable HVAC & automotive diagnostics - • **Seamless Multimeter Integration:** DC voltage output compatible with any multimeter for versatile testing ## Overview The allsun AC/DC Clamp Meter is a compact, industrial-grade current tester featuring advanced Hall Effect sensor technology for precise True RMS measurements up to 400A. Rated CAT III 600V for professional safety, it offers non-contact current testing with a 33mm jaw, low battery LED alerts, and auto zero calibration. Designed for seamless integration with any multimeter, this durable tool is perfect for HVAC, automotive, and industrial electrical troubleshooting, delivering high-end performance at a fraction of the cost. ## Description Product description Very thanks for choosing allsun AC/DC Current Probe Digital Clamp Multimeter . The main products from allsun contain Car Data Saver,Multi-meter,Digital Multimeters,Digital Clamp meter,Metal Detectors,Distance Measures,Infrared Thermometer,Voltage, Battery Tester,Digital Scale and multifunction sensor all of which have an advantage in domestic and overseas markets. If you are now looking for AC/DC Current Probe Digital Clamp Multimeter, exactly, just choose it! INTRODUCTION: AC/DC Current Probe Digital Clamp Multimeter Operation Instruction 7 Read the voltage reading on the display of the multimeter. Then calculate the current of the conductor by using the formula I=Reading/Sensitivity (In this formula,is the current of the conductor, Reading is the voltage reading of the multimeter, Sensitivity is the sensitivity of the selected range of the Current Probe.) Note: 1. Do not input voltage to the output plugs of the Current Probe. Note 1. Do not input voltage to the output plugs of the Current Probe. 2. For DC current measurements, the display of the multimeter will also indicate the measured current's direction. A positive reading (negative sign "-" doesn't appear ) indicates that the current direction is from the Current Probe's front to its back. ( Tip: Current direction is the opposite of electron flow direction. ) 3. Each time after you finish a measurement and remove the jaws from the conductor under test, there may be a residual reading on the display. This reading must be subtracted from the measurement you just performed. 1.Set the multimeter to the desired dc voltage range. Note: Do not set the multimeter to ac voltage range because the internal circuit of the Current Probe changes the ac current signal into dc voltage during ac current measurement. 2. Insert the Current Probe's two output plugs to the voltage input terminals of the multimeter. (Note:The black output plug must be connected to the " COM " terminal of the multimeter.) 3. Set the Current Probe to the desired range with the range switch, the LED lights. 4. Select ac or dc current measurement with the AC/DC button according to the indication of the marks beside the AC/DC button of the Current Probe. 5. Before dc current measurement, press and hold down the ZERO button of the Current Probe for several seconds for zeroing. 6. Press the trigger and clamp the jaws around the conductor to be measured. Make sure that the jaws are perfectly closed. Note: a. Each time only one conductor should be clamped. b. The conductor should be in the center of the jaws and should be perpendicular to the Current Probe. Packing List 1x AC/DC Current Probe Clamp Multimeter 1x Carrying Pouch 1x English User Manual Review: Seems very accurate for use on a scope or meter. - Bought for a friend (for his scope) and he says it works great! It is a True RMS Probe too. Review: Temperature Compensation - I have been pleased with the performance of the meter except one issue. The meter does not have very good temperature compensation. I used it to record amperage on a parasitic draw over night when the temperature got down to about 40° F and the measurement drifted by about 1 amp. Besides this issue it has performed well for my uses. For the price I am still pleased with the meter. ## 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07Z7TXY8J | | Best Sellers Rank | #215,452 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #136 in Clamp Meters | | Brand | allsun | | Brand Name | allsun | | Color | Black and Blue | | Customer Reviews | 4.1 out of 5 stars 148 Reviews | | Manufacturer | Zhangzhou Haimao Dianzi Keji Co., LTD | | Measurement Type | Multimeter | | Min. Operating Voltage | 7.5 Volts (DC) | | Minimum Operating Voltage | 7.5 Volts (DC) | | Part Number | EM-264 | | Power Source | Battery Powered | | Style | Mini Clamp Meter | | Style Name | Mini Clamp Meter | | UPC | 687551089472 | | Upper Temperature Rating | 40 Degrees Celsius | ## Product Details - **Brand:** allsun - **Color:** Black and Blue - **Min. Operating Voltage:** 7.5 Volts (DC) - **Power Source:** Battery Powered - **Style:** Mini Clamp Meter ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/61vKeozdd3L.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/61mjvO3CTwL.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/71V0hTZ6WvL.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/71AhU7lOT0L.jpg) ![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 - Image 5](https://m.media-amazon.com/images/I/61nuwVX2QYL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Seems very accurate for use on a scope or meter. *by G***N on April 20, 2026* Bought for a friend (for his scope) and he says it works great! It is a True RMS Probe too. ### ⭐⭐⭐⭐ Temperature Compensation *by E***L on March 20, 2026* I have been pleased with the performance of the meter except one issue. The meter does not have very good temperature compensation. I used it to record amperage on a parasitic draw over night when the temperature got down to about 40° F and the measurement drifted by about 1 amp. Besides this issue it has performed well for my uses. For the price I am still pleased with the meter. ### ⭐⭐⭐⭐⭐ Surprisingly good! *by 2***T on January 28, 2023* I bought this low-cost clamp-on ammeter figuring it would be -eh- just okay - to replace an old B&K unit. It has two sensitivities, 1 mV/A and 10 mV/A, which, with the maximum output of 400 mV, translates to 400A and 40A full scale, respectively. On the higher sensitivity setting, it had mA resolution with a high-quality DVM, which I already had. So it is not necessary to re-configure the DVM to measure current directly, and that removes the risk of blowing _yet another_ $5 fast-acting HRC fuse. That means it is sensitive enough enough for most electronics work, except for sub-milliamp or microamp circuits which always require dedicated bench top meters. And for household and light-industrial use, a 10x AC line splitter is a perfect complement for similar sensitivity reasons. The unit is the magnetic clamp, with its internal amplifier, and needs a DVM to get the reading. That isn't the drawback it might seem: 1 Many of us already have a DVM, often better than the one in the integrated clamp-ons. And if a meter is needed, the user has the flexibility to choose one is best-suited to the application, 2 It's less expensive that most clamp-ons with built-in DVMs, while offering better utility. and 3 It permits the display to be placed a few feet away from the clamp, which makes it easier to get a clear view. Don't be deceived! — most pictures of integrated clamp-ons can subtly fool you showing the meter up-front and center. In my experience that's rarely the case. Often, the wire needing to be measured is in a tangled mess of stiff copper wires way, in the back of a panel box. Because this unit can also measure direct current, I was most interested to learn how to zero the reading from the Hall effect sensor. The old B&K has a thumb-adjusted flat rotary wheel which is so fussy to set that it takes one hand to make the adjustment, and another to hold the clamp. And maybe a third to hold the DVM. But this product has a simple push-button auto-zero that can be operated with the thumb of the same hand holding the clamp. The auto-zero is not perfect, it left an offset equivalent to ~ 0.8 mA on my sample, still good enough for my needs. The reading drifted a bit, even when the clamp was still. I did not evaluate it in detail because it was low enough, and slow enough, to allow a typical measurement with little affect on a reading. It would also take a complex set of test equipment to be able differentiate between electronic drift and variation caused by change in magnetic fields, for which I wasn't equipped. The reading is sensitive to orientation and movement of the clamp relative to earth's magnetic field, or other nearby magnetic fields, such as from a transformer. That seems to be just the nature of the beast, and the effect can be minimized by zeroing the meter in-situ, already clamped on the wire. That eliminates changes that could be caused by moving the clamp for the reading. One area for improvement is the AC/DC button, which has weak tactile feedback and limited movement. I found it necessary to inspect the switch, sometimes operating it a few times to make sure it was in the right mode. The zero function button doesn't have that issue. In summary, I was surprised and impressed. It was much more useful than I expected, especially for the price. I immediately ordered one for my son also who has his own high-end DVM. ## Frequently Bought Together - allsun AC/DC Mini Clamp Meter Handheld Digital Multimeter CAT III Max. Input 400A/600V 50Hz-60Hz - Hantek HT30A Auto Test Cables Oscilloscope Accessory 3M BNC to Banana Adapter Cable Special Line to Test Signals for Assisting Automobile Measurement - Hantek CC-65 AC/DC Multimeter Current Clamp Meter with BNC Connector Up to 20 kHz 20mA to 65A DC --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/165735025-allsun-ac-dc-clamp-meter-multimeter-400a-true-rms-current](https://www.desertcart.at/products/165735025-allsun-ac-dc-clamp-meter-multimeter-400a-true-rms-current) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-05-14*