# AstroAI TRMS 6000-Count Multimeter, CAT III 600V

Source: https://www.ranked10.co.uk/tech/best-multimeters/astroai-true-rms-6000-multimeter
Ranked #2 in "Best Digital Multimeter 2026: 10 Ranked, and the Number That Doesn't Measure Anything": https://www.ranked10.co.uk/tech/best-multimeters

- Price: £21.92 (checked on Amazon UK on 2026-09-19)
- Amazon rating: 4.6 from 19,497 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B071JL6LLL?tag=ranked10-21

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.

## Specification

| Field | Value |
|---|---|
| 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 |

## 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.