To Check Fluid Quality:
Press the button for power on, green LED will light up.
Insert the tester into reservoir for a second , then the results will be indicated correctly by LEDs.
Auto power off .
Features:
1,check the car brake oil quality
2.Five LED indicators show the test results more accurate.
3.Testing DOT3, DOT4, DOT5 brake fluid
4.Automatic shutdown
5.1 x 1.5V "AAA" Battery
( Not included )
6.Press the switch to turn on the power, the green LED light that represents the battery properly, the green light does not shine on behalf To replace the battery
Indications:
Green: Battery OK, i.e.: No Water Contained in the Brake Fluid
Yellow: Less than 1% of Water Content in Brake Fluid
Yellow/Yellow: Approximately 2% of Water Content in Brake Fluid
Yellow/Yellow/Red: Approximately 3% of Water Content in Brake Fluid;
The Brake Fluid Should be Changed
Yellow/Yellow/Red/Red: at least 4% of Water Content in Brake Fluid;
The Brake Fluid Must be Changed Urgently, Extreme Danger .
Attention:
1. Replace battery if the gree LED not light up any longer after you press power on button. Wash the test probe with tab water after use.
2.In case of skin contact with brake fluid, thoroughly wash the affected skin or clothing with water.
3.Do not expose brake fluid to the atmosphere for a long time as the fluid is highly hygroscopic!
Packaging list:
1* brake fluid tester
Audited Supplier 
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