5 Best Brake Fluid Testers from AliExpress

VXDIAG is one of the easiest testers with Aliexpress. It is made in the form of a pen in a snow-white glossy case. It has 5 LED indicators showing the brake fluid level. The device is 15.9 cm high and only 1.3 cm wide. The device is powered by 2 LR44 batteries. It is convenient that a cover for the tip is provided here. The sensor head is hidden inside the case, so there is no risk of accidentally getting burned or getting oily. The battery compartment is located well - the batteries are arranged edgewise, and not horizontally, as in many testers. Buyers criticize only flimsy plastic, which can crumble over time.

The tester from the OBDResource brand is available in two versions - BF100 and BF200. Their main difference was the presence or absence of a display. The reviews advise choosing the second option, with it you can check the system much easier. The device is suitable for all types of brake fluid, including DOT 5.1.It will operate at a boiling point of 140-170°C. The case does not slip in the hands thanks to rubberized inserts, the battery cover is well fixed and conveniently shifted. The sensor tip sits on a flexible metal probe that twists easily. The only thing that the buyers did not like was that the seller does not put batteries in the package, you will have to buy 2 pieces of AAA type.

This compact pen-shaped tester has become a favorite among customers for its comparatively low price, ease of use and decent build quality. The case dimensions are 15.5*2.5 cm, one LR03 battery is required to operate the device. As in other similar models, there are 5 indicators that indicate the level of water in the brake fluid. Additional features include automatic shutdown to save energy. The reviews praise the miniature size and convenient management of OBDMonster. The set also includes a Russian-language instruction, which is rare on Aliexpress. The disadvantages include constant delays in the delivery of goods, as well as the fact that the device does not work with DOT 5 liquid.

The bright green DUOYI DY23 tester allows you to quickly check the water level in the brake mechanism. The case has a large backlit display and 7 function keys for control. It also provides sound and LED indication. The touch tip is highly sensitive, picking up the slightest vibrations within the system. The device works with brake fluids DOT 3, 4 and 5.1. In reviews on Aliexpress, the excellent build quality and materials of the tester are regularly noted. Buyers did not like only a too loud sound signal - it is not always comfortable for the ears. It also happens that the parcels do not reach, but the seller necessarily makes a return in such cases.

In appearance and functionality, the model resembles OBDMonster, but this is a standard situation for Aliexpress. Judging by the number of reviews and orders, the tester turned out to be much more successful. The instrument is powered by a single LRO3 battery and has red, yellow and green LEDs on the case for easy testing. It accurately indicates the brake fluid level DOT 3, 4 or 5.1. The reviews contain all the necessary tips for using the device. Customers are advised to carefully immerse the electrode tips in the liquid. After measurements, you need to carefully wipe the sensor head. If this is not done, the plastic will quickly decompose. There were no other significant disadvantages of the product, especially considering its pleasant price.