What's in the box:

5 LEDs Mini Auto Diagnostic Brakes Test Pen Portable Vehicle Automatic Brake-Fluid Tester for DOT3 DOT4 DOT5 (Standard)

Professional brakeoil detection pen, which is designed to check the quality of brake-fluid quality by insert the tester into the reservoir for a while and then the results will be correctly indicated by LEDs.

Features:
Portable and light weight, easy and convenient to carry.
Easy operation, just put the tester into the reservoir for a while and then the results will be correctly indicated by LEDs.
Equipped with 5 LEDs to indicate the percentage of water in the brake fluid.
Green light replace the battery is fully recharged or there is no water in the brakeoil; yellow light indicates that 1% -2% water content in the brakeoil; and red light indicates that the water content is higher than 3%.
Please change the brakefluid if the percentage is more than 3%.
It can be used as a suitable digital brake fluid tester to determine the quality of brakefluid.

Specifications:
Name: Brake-Fluid Tester
Material: ABS
Battery: 1 * LR03 AAA battery, 1.5V, 100mAh (included)
Item size: 155 * 25 * 25mm / 6.10 * 0.98 * 0.98in
Item weight: 40g / 1.41ounce
Package size: 170 * 30 * 30mm / 6.69 * 1.18 * 1.18in
Package weight: 50g / 1.76ounce

Packing List:
1 * Brake-Fluid Tester