Brake fluid tester
 

Was in Lidl today and saw brake fluid tester for £6.99. I knew testers are available but never thought they would be this cheap. If it was this cheap in Lidl then surely there must be better deals online so I did a quick search and there are some on eBay for less than £4. If you are not sure when the brake fluid was changed or if it is still good without too much water absorbed from air I think it's worthwhile to get one. Or if you don't believe in changing it every 2 years as it might still be good for longer.

One example on eBay: https://www.ebay.co.uk/itm/402687726...mis&media=COPY