Brake Fluid Liquid Tester Pen Oil Moisture Detector Vehicle Automotive Diagnostic Test Tool
Original price was: $40.99.$21.99Current price is: $21.99.
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Features
MOISTURE CHANGE MEASUREMENT: The brake fluid detection pen is based on the change of electrical conductivity to measure the moisture change of brake fluid
ACCURATE AND RELIABLE: Original high accuracy probe is made of excellent materials, to ensure outstanding performance
QUICK DISTINGUISH: The water content is 0%‑4% representing no water and the amount of water content in turn, so that car owners can quickly understand whether the water content of the brake fluid is qualified.
SCRATCH RESISTANT ABS: Using excellent ABS material, possess impact resistance, scratch resistance, environmentally friendly
TECHNICAL PARAMETERS: Detection range from 0%~4%, error is ±0.3%, detection type contain DOT3, DOT4, DOT5.1
Specification
Item Type: Brake Fluid Liquid Tester
Model: HT662
Material: ABS
Battery: 2 x 1.5V AAA battery(not include)
Basic Parameters:
Detection Range: 0%~4%
Error: ±0.3%
Detection Type:
DOT3, DOT4, DOT5.1
Use Environment:
Working Temperature: 0~40℃
Storage Temperature: -10~50℃
Humidity: ≤95%
Altitude: ≤2000 meters
How to Use
On Or Off:
Press the power button and hold for more than 1 second to turn on, the beep will beep once, the display will light up, and will enter the test state; in the power on state, press the power button to shut down.
Function Switch:
The default brake fluid type detected by the detection pen is DOT3; press the function switch button to switch to DOT4; press again to switch to DOT5.1; press again to return to DOT3, and so on.
Moisture Detection:
After power on, select the type of brake fluid to be tested. Before testing, make sure the metal probe is clean, immerse the metal part of the testing head in the liquid to be tested for 3 seconds, wait for the display to stabilize, observe the state, and read the value. When the value is 0~2%, the green backlight is bright, indicating that the brake oil can still be used; 2~3%, the bright yellow backlight, the buzzer sounds slowly, indicating that the brake oil needs to be replaced; more than 3%, the bright red backlight, the buzzer quick sound, please change the brake fluid immediately.
Package List
1 x Brake Fluid Liquid Tester
1 x User Manual





| Weight | 5 lbs |
|---|---|
| Dimensions | 4 in |
| Brand Name | NoEnName_Null |
| Origin | Mainland China |
| High-concerned chemical | None |
| Choice | yes |















M***k –
Fast delivery, everything works as described. I recommend.
Customer –
seems to be fine.
G***3 –
works very well 👍
I***a –
It is of good quality, I have already tried it and it works very well. It is useful for having in a quick mechanic workshop or as a personal tool. It uses 2 AA batteries.
S***o –
Item functioning as described by the seller. I tried to measure some old DOT3 type brake fluid that I had in stock, but it turned out to be not as good as I expected. Shipment arrived a few days early. Recommended.
P***r –
Very good
Customer –
Well received. Thank you
Customer –
I tested it. First with pure brake fluid, then gradually diluted with water. All three stages work, green, yellow, and red. I am very satisfied.
Customer –
Thank you for the good product and fast delivery.
Customer –
The finish on this product is very high quality, i used this device to test my brake fluid and i am satisfied with the results. Highly recommended.
V***s –
excellent product
A***o –
As described, thank you!!
a***r –
Great item ,fast delivery
g***r –
Perfect
A***k –
Very good
d***d –
Received on time, not yet tried, but seems to be of good quality.
M***m –
Good product, funktion good and quality good thanks
S***n –
Super fast 👍 😊 👍