As an Amazon Associate, Akermin earns from qualifying purchases. Product links on this page are affiliate links.
allsun · allsun Auto Ranging Pocket Digital Multimeter, AC/DC Voltage NCV Ohm Tester | Pocket Electronics Diagnosis, Capacitance Frequency Check, Diode Continuity Test, NCV Detection, Home Workshop Repair, DIY
View on AmazonPrice and availability are shown on Amazon and can change at any time.
The allsun pocket multimeter is a sensible first meter for a homeowner or beginner who wants voltage, continuity, resistance, diode and basic capacitance checks in a package that fits a pocket. It is not the right meter for anyone working on mains distribution boards, high-current circuits, or anything needing a CAT safety rating, because the listing publishes none. If your work involves current above 400mA, or you need a meter that doubles as a clamp for load testing, look at a full-size meter or clamp meter instead.
The buyer this meter is actually built for
The allsun listing describes a meter for schools, laboratories, factories, home users, beginners and maintenance enthusiasts. That is a wide net, but the specification narrows it quickly. The meter is powered by one AAA battery (not included), has a sampling rate of about 3 times per second, and measures DC and AC voltage, DC and AC current, resistance, continuity, diode, capacitance and frequency.
The buyer who gets real value here is the person doing low-energy checks: verifying a battery, testing a fuse or switch for continuity, checking a wall adapter’s output, or confirming a diode orientation. The 3 per second sampling rate is adequate for watching a slowly changing DC voltage, such as a battery discharging. It is not fast enough to catch short transients, and the listing never claims it is.
The buyer this meter is wrong for is equally specific. Anyone who needs to measure current above 400mA is outside the stated limit. Anyone working inside a live distribution board needs a CAT rating, and the listing does not publish one. The built-in 500mA/250V fuse protects the meter’s current path, not the user. That distinction matters, and it is the single most important thing to understand before buying.
What the NCV sensor can and cannot tell you
The listing describes a non-contact AC voltage detection sensor marked NCV beside the LCD. This is a proximity indicator, not a measurement. It senses the electric field around an AC conductor and tells you that voltage is likely present. It does not tell you how much, and it does not replace a direct voltage measurement when you need a number.
For a homeowner, NCV is useful for a quick check before touching a wire or outlet plate: if the sensor stays quiet, that is weak evidence the circuit is dead. It is not proof. The listing makes no claim about sensitivity thresholds or detection distance, so treat NCV as a first-pass warning tool only. For actual voltage readings, use the test leads and the voltage ranges.
This is also where the meter’s limits become practical. The listing publishes a frequency range of 40Hz to 400Hz, which covers standard mains and most low-frequency electronics. It does not publish a maximum voltage rating for the voltage inputs. If you need to know the highest voltage the meter can safely measure, the listing does not say. That absence is a reason to stay away from high-energy circuits, not a reason to guess.
The 400mA ceiling and the fuse that defines the current ranges
The allsun’s current measurement is capped at a maximum allowable input current of 400mA, protected by a 500mA/250V fuse. That is a low ceiling. Many household and automotive checks involve currents well above 400mA: a car headlamp, a starter circuit, a mains-powered appliance under load. This meter cannot measure those directly.
The fuse is there to protect the meter when you exceed the range, not to make high-current measurement safe. If you blow the fuse, the meter stops reading current until you replace it. The listing does not state the fuse type beyond its rating, so matching a replacement is a matter of checking the physical fuse and the printed rating.
For current above 400mA, the correct tool is a clamp meter, which measures current by the magnetic field around a conductor without breaking the circuit. If you are comparing the two approaches, the site’s multimeter versus clamp meter guide explains the trade-off. The allsun is a voltage and continuity tool first; current is a secondary function with a hard limit.
Auto ranging, resolution and the numbers the listing leaves out
Auto ranging means the meter selects the range for you, so you do not have to guess whether a voltage is in the 2V or 20V band. For a beginner, that removes a common source of wrong readings and damaged meters. The listing states auto ranging in the title but does not publish the count, the resolution on any range, or the basic DC accuracy. Those are the numbers that tell you how precise the meter is, and they are not in the listing bullets.
This matters because a meter can display many digits without being accurate to them. The site’s explanation of resolution in a digital meter covers why display digits and accuracy are different things. Without a published accuracy figure, you should treat the allsun as a go/no-go and approximate-reading tool, not a reference instrument.
The data hold function freezes a reading on screen, which is useful when the display is in an awkward place. Automatic power-off protects the battery if you leave the meter on. Neither feature improves accuracy, but both make the meter easier to live with.
Where this pocket meter stops being the right answer
The allsun stops being the right answer at three boundaries. The first is current: above 400mA, it cannot help. The second is safety category: the listing publishes no CAT rating, so it should not be used on fixed mains wiring where a transient could occur. The site’s guide to CAT ratings explains what those categories protect against.
The third boundary is precision. With no published accuracy or count, the meter is not suitable for calibrating equipment or for work where a small error changes the decision. For those jobs, a full-size meter with a published accuracy specification is the correct purchase. The site’s guide to choosing a digital multimeter sets out the questions to ask when the pocket format is not enough.
If you mainly need to check continuity and identify wires, a dedicated continuity tester may be simpler and more robust. The allsun does continuity, but it is one function among many, and the listing does not publish the continuity threshold or the audible alert behaviour.
The honest verdict on the allsun pocket multimeter
Buy the allsun pocket multimeter if you are a beginner or homeowner who wants one small meter for voltage checks, continuity, diode tests and approximate resistance readings, and you understand that current measurement stops at 400mA. It is a reasonable first step into electrical testing, and the auto ranging and data hold make it approachable.
Do not buy it if you work on live mains panels, need a published CAT rating, need to measure more than 400mA, or need documented accuracy. Those are not shortcomings you can work around; they are the boundaries of what the listing supports. For those buyers, the correct move is a full-size meter with a published safety category and accuracy specification, or a clamp meter for current. The allsun is a pocket tool with a pocket tool’s limits, and the listing is honest about the ones it states.
Recommended Tools
Products shown because their documented specifications fit this guide. Price and availability are on Amazon and can change.
Frequently Asked Questions
Can this meter measure current above 400mA?
No. The listing states a maximum allowable input current of 400mA, protected by a 500mA/250V fuse. Above that, you need a clamp meter or a meter with a higher current range.
Does the NCV function replace a voltage measurement?
No. NCV is a non-contact proximity indicator. It can warn you that AC voltage is likely present, but it does not give a voltage reading. Use the test leads for measurement.
What safety category is this meter rated for?
The listing does not publish a CAT rating. Without one, it should not be used on fixed mains wiring or anywhere a transient overvoltage is possible.
What battery does it use, and is it included?
One AAA 1.5V battery. The listing states it is not included.
Does the listing publish accuracy or resolution?
No. The listing does not publish accuracy figures, display count or resolution. Treat readings as approximate rather than reference-grade.
Is this meter suitable for a beginner?
Yes, for low-energy checks such as battery voltage, continuity and diode tests. It is not suitable for live mains work or high-current measurement, which are the limits a beginner should learn first.
Affiliate disclosure: Akermin earns a commission from qualifying Amazon purchases made through links on this page. Our editorial picks are based on documented specifications and owner feedback, not commissions.
Related Guides
ALLOSUN EM3082 Pocket Multimeter Review: What the Listing Leaves Out
A specification-led review of the ALLOSUN EM3082 that separates what the listing states from what it omits, and explains the practical consequences of each gap.
Read More→
KAIWEETS HT206D Clamp Meter Review: The First Hour, and What It Tells You
A first-hour walkthrough of the KAIWEETS HT206D clamp meter, covering what the listing states, what it does not, and where the instrument stops being the right tool.
Read More→Milliohm Meter vs Standard Multimeter: Can a Normal DMM Measure Low Resistance?
A standard multimeter's resistance range cannot resolve milliohms because test lead and contact resistance swamp the reading; a dedicated milliohm meter uses four wire Kelvin sensing to remove them.
Read More→