Sealey VS005

The Sealey tester is very similar to – and proved as accurate as – the Draper.

Like its rival, it comes in a tough case, complete with a precision driver for calibration. But there’s no distilled water for completing the job – we think Sealey should have ditched the second pipette in favour of this.

As with the 10645, it also assesses battery fluid and screenwash, as well as propylene anti-freeze.