AstroAI
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Multimeters Best Budget Multimeter
AstroAI AM33D Digital Multimeter Review
Reviewed by Kerem Başbuğ · Last updated September 28, 2026 · How we rank
8.4 / 10 · our score
A compact 2000-count meter that measures DC and AC voltage, current, resistance, continuity and diodes. It is the cheapest sensible way to stop guessing whether a joint, a battery or an LED is the problem.
Quick Specs
- Brand
- AstroAI
- Category
- Multimeters
- Price tier
- Budget ($)
- Our score
- 8.4 / 10
- Best for
- Kit builders and beginners who need a first meter for continuity and voltage checks.
Our verdict
Every soldering bench needs a meter, and this is the one to buy when you do not yet know how much you will use it. The continuity beeper alone finds most kit faults — a joint that looks fine but does not connect, or a solder bridge that shorts two pins. It will not satisfy an electrician, but for electronics hobby work it is all the meter many people ever need.
Pros & cons
Pros
- Covers voltage, current, resistance, continuity and diodes
- Continuity beeper makes checking joints fast
- Very low cost for a genuinely useful tool
- Small enough to live on the soldering bench
Cons
- 2000-count resolution is basic for precision work
- Not rated for serious mains electrical work
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Key features
- 2000-count digital display
- DC/AC voltage, DC current and resistance
- Continuity buzzer and diode test
- Test leads included
What's in the box
- AM33D digital multimeter
- Pair of test leads
- Battery fitted or included (check the current listing)
- User manual
Contents come from the current Amazon listing and can change — check the listing before buying.
Getting started with the AstroAI AM33D Digital Multimeter
Learn continuity mode first — touch the probes together to hear the beep, then use it to check every suspicious joint on a board that does not work. Always power the circuit off before measuring resistance or continuity. When measuring current, move the red lead to the current socket and remember to move it back afterwards; leaving it there is the classic way to blow a meter fuse on the next voltage reading.
Who it's for
Kit builders and beginners who need a first meter for continuity and voltage checks.
Alternatives worth considering
AstroAI True RMS 6000-Count Auto-Ranging Multimeter
Auto-ranging, True RMS and capacitance for a small step up in price — less dial-turning and more measurements.
Klein Tools MM325 Manual-Ranging Multimeter
A tougher, trade-brand build if the meter will also come out for household electrical checks.
AstroAI AM33D Digital Multimeter: common questions
Is a cheap multimeter good enough for soldering projects?
Yes. For kit building and hobby electronics you mostly check continuity, battery voltage and resistor values, and a 2000-count meter does all of that. Precision and safety ratings only start to matter for professional or mains work.
How do you test a solder joint with a multimeter?
With the circuit unpowered, set continuity mode and touch one probe to the component lead and the other to the track it should connect to. A beep means a connection; silence points to a cold or cracked joint. Also check neighbouring pins to catch solder bridges.
What does 2000 counts mean?
It is the display resolution: the meter can show up to 1999 before switching range. Higher-count meters show more digits at each range, which matters for precision measurements rather than everyday hobby checks.
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