Specifications:
1. **How to Use**:
a. Insert 2 AAA batteries (not included) into the main unit.
b. Deeply press the power button for 3 seconds to power on the unit.
c. Single press the power button to select the current oil type.
d. Insert the test probe into the brake fluid (ensure the probe is clean to obtain accurate results) and view the LED display for results.
e. Double click the power button to activate the LED flashlight.
f. Deeply press the power button for 3 seconds to power off the unit.

2. **Tips**:
a. After each test, thoroughly clean the probe to prevent residual stains from affecting future use.
b. If the device will not be used for an extended period, it is advisable to remove the batteries and store it in a dry place.

**Size Chart**:
- Product Name: Brake oil detector
- Model: BF100
- Material: Industrial-grade ABS material
- Display: Industrial-grade ABS material with a three-color LED light display
- Color: Black
- Battery: Battery No. 7 (2 required, not included)
- Test Range: DOT3, DOT4, DOT5, DOT5.1
- Temperature Range: 0-60°C
- Applicability: Suitable for all vehicles

**Package Includes**:
- 1X Brake oil detector (Batteries not included)

**Note**:
- Please clean the probe after each test to ensure its longevity.
- Batteries are not included.