NF Brake Fluid Tester with Sound Light Double Alarm Function, Calibrated for DOT3 DOT4 DOT-5.1 Brake Fluid Tester Pen

Works well and simple to use... This may save you a good deal of money in the long run.

It's ideal tool to explain whether you need to spend your money on a brake fluid change, coat £15 and saved me a £90 fluid change. the only reason you change brake fluid oils is either particle contamination, which cannot happen in most cars under 7 years old, or water moisture absorption which builds up over time. so this device tells you the specific percentage moisture level with enough accuracy to be meaningful. Great way to make decisions and save money with risking any safety issues

Quality is really good. Accurate result everytime. Very handy when you service your car by yourself. I do not mind paying more to get a better product.

I’ve used the tester to check the brake fluid in my car it gave me a reading of 2.3 % which suggests I should change the fluid, seeing the car is 5 years old is about right. I then tested it on fresh brake fluid and it gave me a much lower reading, on the results of both tests I will have the brake fluid changed at my next service. Brake fluid is one of those things we tend to forget about, but it looses its effectiveness with age, and it’s not part of my annual service, you have ask to have it done, and pay for it.

Good quality

All working fine happy with the item

Brake fluid testing. Worked fine, did not detect any moisture.

Cheap and useful. Knowledge about your vehicle can save you money.

Ho acquistato questo prodotto per curiosità, l' ho usato una sola volta confrontando l' olio nuovo nel barattolo appena acquistato e quello che avevo nella vaschetta del mio scooter. Sembra aver soddisfatto a pieno le mie aspettative

Lo he probado en mis dos coches, uno sabia que estaba mal y el otro bien y con esta herramienta lo he comprobado, en el que está mal me indicaba 3,4 y en rojo, en el que está bien me indica 1,4 y en verde. Producto robusto, fácil de usar, rápido y preciso, lleva las pilas incluidas. Por calidad y precio es perfecto

Macht was er soll und funktioniert perfekt . Tolles Produkt

Conforme à la description, utiliser mais je doute quand même de la qualité du liquide de frein ( jamais changé en 15 ans 🫣), outil fiable 🤔

It works great! It didn't cost a lot and it was a great value for the money (especially when I think about my thinking of having my brake fluid changed right away and not being able to wait. That word have cost me a lot more than what this did, hundreds more). So I'm glad that I bought this unit bc it saved me hundreds of dollars.