--- product_id: 76132130 title: "ACM91 Digital Clamp Meter 1mA AC/DC Current True RMS Auto-Ranging 6000 Counts Meter Hz Temperature Capacitance Live Check V-Alert Low Impedance Voltage Tester" brand: "bside" price: "€ 92.95" currency: EUR in_stock: true reviews_count: 8 category: "Bside" url: https://www.desertcart.gr/products/76132130-acm91-digital-clamp-meter-1ma-ac-dc-current-true-rms store_origin: GR region: Greece --- # 1mA clamp sensitivity 6000 counts True RMS display Temp range -20°C to 500°C ACM91 Digital Clamp Meter 1mA AC/DC Current True RMS Auto-Ranging 6000 Counts Meter Hz Temperature Capacitance Live Check V-Alert Low Impedance Voltage Tester **Brand:** bside **Price:** € 92.95 **Availability:** ✅ In Stock ## Summary > ⚡ Clamp, Check, Conquer — The Ultimate Multimeter for the Modern Pro ## Quick Answers - **What is this?** ACM91 Digital Clamp Meter 1mA AC/DC Current True RMS Auto-Ranging 6000 Counts Meter Hz Temperature Capacitance Live Check V-Alert Low Impedance Voltage Tester by bside - **How much does it cost?** € 92.95 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/76132130-acm91-digital-clamp-meter-1ma-ac-dc-current-true-rms) ## Best For - bside enthusiasts ## Why This Product - Trusted bside brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **On-the-Go Ready:** Compact back clip design fits your belt or pocket—always ready for your next job or project. - • **All-in-One Pro Tool:** Measures capacitance, frequency, resistance, continuity, low impedance voltage, and temperature with true RMS accuracy. - • **V-Alert Anywhere, Anytime:** Non-contact live wire detection activates on any function for instant safety assurance. - • **Dual Display, Double Insight:** Simultaneously monitor voltage/current and frequency or temperature in °C/°F for smarter diagnostics. - • **Precision at Your Fingertips:** Ultra-sensitive 1mA AC/DC clamp current detection for pinpoint accuracy. ## Overview The BSIDE ACM91 is a versatile digital clamp meter featuring 1mA sensitivity for AC/DC current, a true RMS 6000-count dual-line display, and a broad measurement range including temperature up to 500°C, capacitance, frequency, and low impedance voltage. Designed for professionals and hobbyists alike, it offers non-contact live wire detection (V-Alert) accessible in any mode, a portable back clip design, and compliance with IEC safety standards, making it an indispensable tool for precise electrical diagnostics and troubleshooting. ## Description Why choose BSIDE clamp meter? With a wide range of test functions and features, it is a true clamp multimeter.Not limited to vehicles also applicable homes.1mA sensitivity when measures AC/DC current by clamp Features: Measure microamps μA (minumum 0.1μA by terminals)V-alert measurement, live-wire check Measure frequency, temperature, resistance, continuity and capacitance Low impedance voltage measurement Clamp on frequency function Auto range, Auto power off, data hold, low battery indication with backlight Conform to the IEC-61010-1, IEC-61010-2-030, IEC-61010-2-032, IEC-61010-2-033 standards Over-voltage protection class CAT III 300V, CAT II 600V, pollution degree II Specifications: Display: 6000 counts DC current: 6A/60A/100A 0.001A/0.01A/0.1A ±(3.0%+5counts) DC current(μA): 0-200μA 0.1μA ±(0.8%+5counts) AC current: 6A/60A/100A 0.001A/0.01A/0.1A ±(2.5%+5counts) DC voltage: 6V/60V/600V 0.001V/0.01V/0.1V ±(1.0%+3counts) AC voltage: 6V/60V/600V 0.001V/0.01V/0.1V ±(1.0%+3counts) Low impedance LOZ: Max 600V Resolution 0.1V Resistance: 600Ω/6kΩ/60kΩ/600kΩ/6MΩ 0.1Ω/0.001KΩ/0.01KΩ/0.1KΩ/0.001MΩ ±(1.0%+3counts) 60MΩ 0.01MΩ ±(1.2%+20counts) Capacitance: 600µF/6000µF 0.1µF/1µF ±(4.0%+3counts) Frequency: 60Hz/1000Hz 0.1Hz/1Hz ±(1.0%+5counts) Frequency(by jaws): 60Hz/1000Hz 0.1Hz/1Hz ±(1.0%+5counts) Buzzer: If the resistance is less than 30Ω, the continuity beeper sounds Temperature: -20℃~500℃ 1℃/2℉ ±(2.0%+2counts) Jaw Capacity: 20mm Power: 1.5V (AAA) x 2 (not included) Size: 179 x 67 x 36 mm Weight: 137g Package Included: 1 x Digital AC/DC Clamp Meter 1 x Test Leads 1 x Thermocouple 1 x Carrying Case 1 x Screwdriver 1 x User Manual Note: The batteries are not included in the package due to Aviation Security Check Review: It works when it works (update) - I originally bought this meter in July 2020. It worked fine until late October 2020, then just refused to come on. To their credit the manufacturer promptly sent me a replacement, even though this was beyond the normal return period. Needless to say, I was impressed. Unfortunately, the "new" meter does not read at all. As shown in the attached photo, a "cheapo" multimeter reads the battery voltage at 12 VDC while the ACM91 does not read at all. It did not read AC current, either. This cannot be ascribed to user error since I successfully used to first for three months. Too bad, because I really like this meter. Update: After reading my post, I heard from the manufacturer. They suggested re-inserting the probes because they were "not easy to insert." I followed their suggestion and inserted until I felt a firm "click." That solved the problem. I am glad about the meter but I am overwhelmed about the responsiveness of the seller. They were terrific. Review: Great clamp meter with 1mA DC resolution at great price - This is a very decent clamp meter for the handyman and hobbyist. Its accuracy exceeds my expectations for such a low cost meter. This cheap meter doesn't replace a pro grade meter such as a Fluke, but for casual use around the home, does it really matter if a reading is 11.4 V vs. 11.3 V? What I like about this meter is its 1 mA resolution for DC amp readings using the clamp. For comparison, I also have an Extech 380942 clamp meter that I bought for $400 around 17 years ago. The Extech still retails for $400. The $400 Extech has higher accuracy specs than the $50 BSIDE ACM91, but the differences are slight. I spot checked several DC and AC current readings using the clamp at low currents (for example, around 25 mA DC, 130 mA DC, 330 mA DC, and 160 mA AC). The clamp-based readings between the Extech 380942 and the ACM91 essentially matched, differing by no more than 1 or 2 mA. The ACM91 was stable at low DC amp readings using the clamp and drifted a lot less than the Extech. Some caveman reviewers sounded like they never bothered to read the user manual and then blamed operator error on the meter. Some of them didn't plug in the test leads properly. One reviewer didn't understand that clamp readings only work with one phase (i.e. one wire) at a time. One operating detail that should be obvious is that the clamp only works when the test leads are removed. If the test leads are still plugged in, the clamp will give no reading. The most important thing about the DC clamp amp meters is they use a Hall effect sensor to detect DC currents. The manual specifically instructs the user to press and hold the zero button for 2 seconds to zero out the reading before taking a DC amp reading with the clamp. Some users didn't zero the meter and got wildly wrong DC amp readings and then blamed the wild readings on the meter. I'll add one further detail not mentioned in the manual to help give better DC amp accuracy when using the clamp. Once you've zeroed out the DC meter, hold the meter in the same orientation when taking readings. Don't tilt it, twist it, or rotate it. Otherwise, changing the orientation of the meter can give false readings due to different magnetic flux through the clamp from the earth's magnetic field when the meter is oriented differently after it's been zeroed. A main drawback is the meter screen is very hard to read. It has a curved protective lens and it's almost impossible to avert reflected light due to the curvature of the lens. A flat surface would have worked much better to minimize reflections. ## Features - [1mA Sensitivity]: 1mA sensitivity when measures AC/DC current by clamp. - [Dual Line Display]: Dual line display can show both AC voltage/current and frequency or Celsius and Fahrenheit on the screen. - [Activate V-alert at Any Function]: Convenient to activate V-alert (non-contact voltage detection) function under any function range by pressing the V-Alert button. - [True RMS 6000 Counts Clamp Meter]: This true rms 6000 counts auto-ranging clamp meter can measure temperature, capacitance, low impedance voltage, frequency, resistance, continuity, AC/DC voltage, AC/DC current and live wire check. - [Back Clip Design]: Back clip design make it portable, hang on your belt or pocket. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07G84XDWH | | Batteries | 2 AAA batteries required. | | Best Sellers Rank | #556,380 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #869 in Multi Testers | | Brand | BSIDE | | Color | Black | | Date First Available | August 7, 2018 | | Is Discontinued By Manufacturer | No | | Item Weight | 4.9 ounces | | Item dimensions L x W x H | 2.64 x 1.42 x 7.05 inches | | Item model number | BSIDE ACM91 | | Manufacturer | Bside | | Measurement Type | Multimeter | | Min. Operating Voltage | 300 Volts | | Power Source | Battery Powered | | Product Dimensions | 2.64 x 1.42 x 7.05 inches | | Specification Met | Iec 61010 | | Style | AC/DC Clamp Meter | | Upper Temperature Rating | 500 Degrees Celsius | ## Product Details - **Brand:** BSIDE - **Color:** Black - **Item Weight:** 138 Grams - **Power Source:** Battery Powered - **Style:** AC/DC Clamp Meter ## Images ![ACM91 Digital Clamp Meter 1mA AC/DC Current True RMS Auto-Ranging 6000 Counts Meter Hz Temperature Capacitance Live Check V-Alert Low Impedance Voltage Tester - Image 1](https://m.media-amazon.com/images/I/71zqOzhOKaL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Is it true rms with the amps?** A: Just an FYI to readers - To clarify what they mean by True RMS. True RMS, VRMS, ARMS and WRMS is the RMS measure of both the AC + DC components, it's integration of the area under the curve. This meter measures VACrms and AACrms, so it separates the DC component. It should state TRUE AC RMS, but like most meter manufacturers, they don't. There's a lot of misunderstanding on this thanks to marketing in companies. Take a look at a Fluke 187 or 189 where they actually measure TRUE RMS, but on the meter they call it AC+DC (in Blue). Most people are fine with this, since they typically measure line voltage or clean DC (battery or SMPS supplied). However, measure a DC source with high ripple current and you will not get a real measure, such as in automotive battery chargers that use a linear charger (large transformer based, not SMPS). Knowing the True RMS allows you to properly design for things such as thermal, efficiency and safety (fuses, breakers, thermal cutoffs, etc..) and to prevent over charging or over powering a battery or device. Class 2 devices, as those that fall under UL1310, have to comply to VRMS up to 2kHz for both indoor and outdoor ratings. Landscape lighting, LV pool lighting, USB 3.x Power Port also must comply. The reason for this in LV applications is because of the breakdown voltage of the skin. How to tell, if the AC symbol on the display only has a tilde ~ it's ACrms. If it has both the tilde ~ and a straight line – above it, its RMS. Some meters (Fluke 187, 189, 287 & 289) use the DC for both DC and RMS, so it will have both if the second function feature is RMS. The Dashed straight line on the flukes means it can also properly measure pulsed DC. **Q: what is the minimum dc amperage it will measure? 1ma ?** A: In 6A range, resolution is 0.001A, the test range is 0.001A~6A. In 60A range, resolution is 0.01A, the test range is 0.01A~60A. In 100A range, resolution is 0.1A, the test range is 0.1A~100A. **Q: with the clamp can you measure amps in DC ?. Up to how many amps maximum?** A: Yes, with the clamp, the tester can not only measure amps in DC, but also measure amps in AC, the maximum amps is 100 amps with 1mA resolution. **Q: Is this basically the same unit as the Uni-T 210D?** A: This meter has been upgraded a lot compared to Uni-T 210D 1. This meter has higher precision than Uni-T 210D (6000 counts vs 2000 counts), especially measure current with clamp, for example, when measure current approximately 2.5A, this meter display 2.493A, Uni-T 210D only display 2.49A 2. This meter added many functions: Live wire check, Low Impedance voltage test, measure microamps μA by terminals, etc. 3. This meter has many upgraded designs: Side probe holder design for easy test, Back clip design make it more portable, etc. ## Customer Reviews ### ⭐⭐⭐⭐⭐ It works when it works (update) *by J***N on October 29, 2020* I originally bought this meter in July 2020. It worked fine until late October 2020, then just refused to come on. To their credit the manufacturer promptly sent me a replacement, even though this was beyond the normal return period. Needless to say, I was impressed. Unfortunately, the "new" meter does not read at all. As shown in the attached photo, a "cheapo" multimeter reads the battery voltage at 12 VDC while the ACM91 does not read at all. It did not read AC current, either. This cannot be ascribed to user error since I successfully used to first for three months. Too bad, because I really like this meter. Update: After reading my post, I heard from the manufacturer. They suggested re-inserting the probes because they were "not easy to insert." I followed their suggestion and inserted until I felt a firm "click." That solved the problem. I am glad about the meter but I am overwhelmed about the responsiveness of the seller. They were terrific. ### ⭐⭐⭐⭐⭐ Great clamp meter with 1mA DC resolution at great price *by S***Q on September 24, 2021* This is a very decent clamp meter for the handyman and hobbyist. Its accuracy exceeds my expectations for such a low cost meter. This cheap meter doesn't replace a pro grade meter such as a Fluke, but for casual use around the home, does it really matter if a reading is 11.4 V vs. 11.3 V? What I like about this meter is its 1 mA resolution for DC amp readings using the clamp. For comparison, I also have an Extech 380942 clamp meter that I bought for $400 around 17 years ago. The Extech still retails for $400. The $400 Extech has higher accuracy specs than the $50 BSIDE ACM91, but the differences are slight. I spot checked several DC and AC current readings using the clamp at low currents (for example, around 25 mA DC, 130 mA DC, 330 mA DC, and 160 mA AC). The clamp-based readings between the Extech 380942 and the ACM91 essentially matched, differing by no more than 1 or 2 mA. The ACM91 was stable at low DC amp readings using the clamp and drifted a lot less than the Extech. Some caveman reviewers sounded like they never bothered to read the user manual and then blamed operator error on the meter. Some of them didn't plug in the test leads properly. One reviewer didn't understand that clamp readings only work with one phase (i.e. one wire) at a time. One operating detail that should be obvious is that the clamp only works when the test leads are removed. If the test leads are still plugged in, the clamp will give no reading. The most important thing about the DC clamp amp meters is they use a Hall effect sensor to detect DC currents. The manual specifically instructs the user to press and hold the zero button for 2 seconds to zero out the reading before taking a DC amp reading with the clamp. Some users didn't zero the meter and got wildly wrong DC amp readings and then blamed the wild readings on the meter. I'll add one further detail not mentioned in the manual to help give better DC amp accuracy when using the clamp. Once you've zeroed out the DC meter, hold the meter in the same orientation when taking readings. Don't tilt it, twist it, or rotate it. Otherwise, changing the orientation of the meter can give false readings due to different magnetic flux through the clamp from the earth's magnetic field when the meter is oriented differently after it's been zeroed. A main drawback is the meter screen is very hard to read. It has a curved protective lens and it's almost impossible to avert reflected light due to the curvature of the lens. A flat surface would have worked much better to minimize reflections. ### ⭐⭐⭐⭐ Worked well for small inductive current measurements *by M***N on July 27, 2021* I needed to measure inductive current of <= 10ma and this device provided the expected current measurement. I have no idea of the accuracy but it did measure what I was expecting so hope it is accurate at these small values indicated. The only downside noticed in use is the backlight turns itself automatically afetrt a very short time period and I wish it would stay lit until I turned it off. I would purchase again. ## Frequently Bought Together - BSIDE ACM91 Digital Clamp Meter 1mA AC/DC Current True RMS Auto-Ranging 6000 Counts Meter Hz Temperature Capacitance Live Check V-Alert Low Impedance Voltage Tester - Lisle 64970 Parasitic Drain Tester, One Size, Factory --- ## 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.gr/products/76132130-acm91-digital-clamp-meter-1ma-ac-dc-current-true-rms](https://www.desertcart.gr/products/76132130-acm91-digital-clamp-meter-1ma-ac-dc-current-true-rms) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-04-23*