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Draper 61820 6–24V DC Automotive Circuit Tester
The Draper 61820 is a DC automotive circuit tester for 6V to 24V circuits. Its colour-coded LED indication and long flexible cable are suited to polarity checks and fault-finding around a vehicle, but it is not for AC circuits.
At a glance
- Intended for DC automotive circuits from 6V to 24V, not AC circuits.
- Designed for checking continuity, tracing bad earths and short circuits, and powering components on or off the vehicle.
- LED illumination indicates positive voltage in green and negative voltage in red.
- The 3.45m flexible cable extends reach around a vehicle.
Price
£24.48Save 18%
Reference price: £29.99
Price checked: 14 Nov 2026
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Pros and cons
Pros
- A stated 6–24V DC operating range covers the automotive circuits the listing identifies.
- The included crocodile clips, wire probe and back probe offer several ways to connect or access a test point.
- Colour-coded LED polarity indication gives a straightforward visual cue.
Cons
- The listing explicitly excludes AC circuit testing, so this is not a general-purpose tester for AC work.
Technical specifications
9 specifications| Brand | Draper |
|---|---|
| Model | 61820 |
| Power configuration | dc |
|---|---|
| Testing range | 6V up to 24V testing kit suitable only for DC automotive electrical circuits |
| LED indication | Simple LED illumination for positive (green) and negative (red) voltage |
| Dimensions listed | 29.8 x 14.2 x 5.5 centimetres |
|---|---|
| Weight listed | 0.28 Kilograms |
| Cable and accessories | Supplied with 3.45m flexible extension cable and 2 x crocodile clips, wire probe and back probe |
|---|
| Warranty | 12 months parts and labour. |
|---|
What to know before buying
- Use only on DC automotive circuits within the stated 6V to 24V range. The listed dimensions and weight are product details, not evidence of the tool's reach or cable length.
What’s in the box
Included- Auto probe DC power circuit tester
- 3.45m flexible cable
- 2 crocodile clips
- Wire probe
- Back probe
Who is it for?
A good fit for
- DIY vehicle owners tracing continuity issues, short circuits or poor earths on 6–24V DC automotive circuits.
- Users who want a probe with a flexible lead and multiple supplied connection accessories.
Less suited to
- Anyone needing to test AC circuits.
- Buyers looking for a general-purpose electrical meter, as the listed uses concern DC automotive circuit probing.
Customer reviews on Amazon
- 5 stars
79% 79% - 4 stars
17% 17% - 3 stars
4% 4% - 2 stars
0% 0% - 1 star
0% 0%
The supplied evidence contains aggregate ratings but no customer-comment summary. Those ratings are generally favourable, but they do not establish which features buyers valued or explain the smaller share of lower ratings. Consider them limited context rather than evidence of performance for your particular vehicle or task.
Frequently asked questions
Can the Draper 61820 test AC circuits?
No. The listing states it is suitable only for DC automotive electrical circuits and is not suitable for AC circuits.
What voltage range is it intended for?
The stated testing range is 6V to 24V on DC automotive circuits.
What does the LED indicate?
The listing says the LED illuminates green for positive voltage and red for negative voltage.
What accessories are listed as included?
The contents list specifies a 3.45m flexible cable, two crocodile clips, a wire probe and a back probe, alongside the tester.
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