Rank #2 in Best Digital Multimeter 2026: 10 Ranked, and the Number That Doesn't Measure Anything
AstroAI TRMS 6000-Count Multimeter, CAT III 600V
- Rating
- 4.6
- Ratings
- 19,497
- Rank
- #2
Price and rating as shown on Amazon when we collected them. Both change.
The AstroAI TRMS 6000 Counts (model AST-6000-D) sits at number two in this guide at £21.92, with 4.6 stars from 19,497 ratings. It is the second half of the pair the guide opens with: 22,442 plus 19,497 is 41,939 ratings, still fewer than the 55,860 on the £11.99 meter in first place. On volume it loses. On what it claims to measure, it does more.
The listing credits the AstroAI AST-6000-D with AC/DC current, AC/DC voltage, capacitance, frequency, duty cycle, resistance, diode, continuity and temperature, plus auto-ranging and True RMS. The awkward part sits in its own specification table: the same meter sold on its temperature function lists an Upper Temperature Rating of 1370 Degrees Celsius and a Lower Temperature Rating of 40 Degrees Celsius. Read literally, it stops working below 40°C. That table also files this 6000-count multimeter under a Style Name of 'Voltage Tester'. Everything on this page is taken from the Amazon listing, not from testing in our hands.
How those 19,497 ratings break down
An average hides its own shape. This is the spread behind the 4.6 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £21.92 |
|---|---|
| Rating | 4.6 out of 5, from 19,497 ratings |
| Model | AST-6000-D |
| Display Counts | 6000 (from the product name) |
| Lower Temperature Rating | 40 Degrees Celsius (as listed) |
| Upper Temperature Rating | 1370 Degrees Celsius (as listed) |
| Style Name | Voltage Tester (as listed) |
| Item Weight | 492 g |
What it is up against
The rivals it was ranked against in Best Digital Multimeter 2026: 10 Ranked, and the Number That Doesn't Measure Anything.
Questions people ask
What does the AstroAI AST-6000-D measure?
The listing states AC/DC current, AC/DC voltage, capacitance, frequency, duty cycle, resistance, diode, continuity and temperature.
Does it read AC current?
Yes. The AstroAI TRMS 6000 bullet points list AC/DC Current, which is wider than the £11.99 meter at number one, listed with DC current only.
What temperature range does the listing give?
An Upper Temperature Rating of 1370 Degrees Celsius and a Lower Temperature Rating of 40 Degrees Celsius. The lower figure is the odd one: 40°C is the sort of number other listings use as an upper limit, not a floor.
Is it auto-ranging?
Yes. The AstroAI description lists Auto-Ranging capability alongside True RMS for AC and DC measurement.
What fuse protection does it have?
The listing describes a double ceramic fuse, with F400mA/600V and F10A/600V explosion-proof ceramic fuse tubes.
What is included with the meter?
One AstroAI 6000 Counts Multimeter, one 9V 6F22 battery, a pair of test leads, a multi-function socket and a user manual.
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