AstroAI Multimeter 2000 Counts Digital Multimeter with DC AC Voltmeter and Ohm Volt Amp Tester ; Measures Voltage, Current, Resistance; Tests Live Wire, Continuity

UPDATE: More photo-based tests! Okay, I wasn't expecting much from a meter that cost $10. I received it and put it through its paces at home with a variety of items. Various batteries, computer power supplies, various resistors/pots, 120 volt wall outlets, and various low current loads And it's remarkably accurate! Later, I took it to work and put it through its paces on a bench supply, comparing it to a half-decent half-decent half-decent half-decent half-decent half-decent half-decent half a dozen other multimeters (bench and handheld) and, while not as precise as its more-expensive counterparts, It's not expensive, but it gets the job done! There was no auto ranging, and the rubbery material smelled for a while, but it was well worth the money. br>br>Update: So I put it through some more tests. This little guy is spot on for DC voltage/current and resistance measurement. However, it has a few flaws. The AC reading is off by a few degrees. It's good for rough estimates, but based on what I've seen so far, it's not very accurate. When the continuity buzzer sounds, there is also a noticeable delay. Meters, for the most part, respond instantly. This meter, on the other hand, has roughly a half-hour's worth of battery life. a pause of a second It's a little grating. Finally, the voltage of this meter's test signal is significantly out of specification. This meter produces a good 50hz when combined with three properly calibrated oscilloscopes, but it is well below the voltage spec. Still, a $10 meter isn't bad! br>br>Update number two: One thing I neglected to do was disassemble it and inspect the circuitry. And. It isn't very good. The mA range is protected by a fuse, but the 10A range is not. So, if you hook it up to a high-powered amplifier, it'll most likely go off. On a dead-end street, there is an energy circuit. There are also some trace creepage issues to contend with. The creepage between the voltage input and common is less than 1mm in some places, which isn't ideal; additionally, after a few more tests with a function generator, I discovered that this is an averaging meter rather than a true RMS meter. This is a good choice for low voltages if you're a beginner in electronics and looking for a neat little meter to start with. However, because of the lack of a fuse on the 10A input and the creepage, I wouldn't recommend using this on anything that carries mains voltage or can produce a lot of amps.

Sara Mosley

| Dec 08, 2021

I'd like to comment on both the seller and the product: I ordered this because it was inexpensive and had good reviews, and I don't use a multimeter very often. My instrument arrived in excellent condition and on time. It worked flawlessly for the few minutes it was operational. However, because I am not very electrically inclined, I accidentally damaged it by leaving it on the incorrect setting. It was a relatively low-cost lesson, so I chalked it up to that. I wasn't going to tell Amazon or the seller about it because it wasn't their fault; it was mine. However, Gary, the seller, contacted me a few days later to ensure that I was happy with my purchase. "Let me send you another one," he said after I explained what had happened. " And that is exactly what he did for me, at no cost to me. The new one, like the first, performed flawlessly. And I'm hoping that, having learned from my first mistake, I'll be able to make this one last a long time; if it doesn't, it's almost certainly not the product's fault, as it appears to be well-made. I'm happy with the product, but the level of customer service has left me speechless.

Ayla Andersen

| Nov 05, 2021

We could get a fuse fairly cheaply, according to his teacher (who is the one who determined why it stopped working for us), but we haven't done so yet. It's also possible that the fuse was blown due to user error. br>br>NEW ADDITIONAL INFORMATION- The company contacted me right after I posted my first review. A replacement was offered. I declined because my son was nearly finished with his project (for which he required this). However, I respect a business that stands behind its products!.

Musa Huynh

| Jul 04, 2021

I wasn't expecting much from a $10 Mutimeter, to be honest. Prior to that, I needed a cheap one to read small ham radio ht cells. following a cycle of recharge For comparison, I bought this one ($20) from a different brand. When I arrived with a dead 9V battery, I contacted the seller, who advised me to purchase a replacement battery and that I would be reimbursed. That, in my opinion, is poor customer service, and it serves as a warning about what to expect if warranty service is required. Returning to the topic at hand: The unit is well-built, with a removable rubber outer cover and a slew of cables. I can see where the wire enters the actual plug; pulling the wire out should be simple! But, hey, it's only ten dollars. Then I used a Crenova MS8233D ($20 Amazon) to do a voltage test. AM- Improbe 20 dollars ($65 for a professional multimeter) Lithium-ion battery that has been charged to a voltage of 4 volt Ion cell was measured out of the radio, and all three multimeters were set up side by side. Crenova Improbe agreed at a precise time of 7 p. m. 96 volts. The size of this Astro was only 7. 88 volts. The same test was performed twice and yielded the same results each time. I contacted the seller, who advised me to "buy another battery" and see what kind of warranty they have on a brand new, inaccurate multimeter. I only keep meters that agree on voltage, so the one I got was faulty, as was my Harbor Freight $3 "free with any purchase" meter. The other two meters agree with the 99 multimeter. If you want more value for your money, I recommend checking out the Crenova MS8233D. It comes with a nice carrying case for the unit and cables, as well as a second set of alligator clip type cables, as well as covers for the probes' pointed ends and inserts for the port ends of each cable. The cables are secured to the unit's sides, and the pointed probes are protected by a hard plastic cover. And 100% accurate, cables are thick and well made as well as well as well as well as well as well as well as% These are the features that this Astro lacks, such as a case, clips, high-quality cables, and caps, to name a few.

Esteban Ewing

| Feb 09, 2021