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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
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Description
DUOYI DY23B Car Brake Fluid Detection Pen Moisture Tester, DY23B1. Brake pressure was transmitted by brake fluid, the pressure transmission will out of function once brake fluid including too much water. In order to safe driving, we must test water ratio scale in brake fluid regularly. The brake fluid tester help us do current maintenance, make sure we drive in safety condition. 2. HD backlight dual display, support backlight display glare and easy reading day and night. 3. Operation Manual: (1). Install one
1. Brake pressure was transmitted by brake fluid, the pressure transmission will out of function once brake fluid including too much water. In order to safe-driving, we must test water ratio scale in brake fluid regularly. The brake fluid tester help us do current maintenance, make sure we drive in safety condition.2. HD backlight dual display, support backlight display glare and easy reading day and night.
3. Operation Manual:
(1). Install one 9V(6F22) battery at the back of tester.(not included)
(2). After inserting the battery, press POWER button to turn on the tester, all LEDs lights turn on with buzzer sounding, which indicates the product self-test is successful.
(3). Press SELECT button, it will locate DOT3 model automatically.
(4). Each time you push the SELECT button, it will recycle from DOT3 to DOT4 to DOT5.1 with the indicator LEDs.
(5). Immerse the probe into brake fluid and you will get different colors of LED lights, they indicate:
Green Light: indicates the brake fluid water content is below 1%
The First Yellow Light: indicates the brake fluid water content is approximately 1.5%
The Second Yellow Light: indicates the brake fluid water content is approximately 2.5%
The First Red Light: indicates the brake fluid water content is approximately 3%
The Second Red Light: indicates the brake fluid water content is more than 4%
(6). Press POWER button to turn off the tester.
4. Note:
(1). After use, please clean the probe and avoid any retention of stains that might affect the test.
(2). If in use for a long time, best to remove all batteries and store in a dry place at normal room temperature.
5. Package include:
Brake fluid tester x 1
User manual x 1
Specification:
| Package Weight |
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Perfect for travel!
Size: Small Size
Love these and perfect for my bar soap. European hotels love their body wash refillable bottles but I like my soap! This keeps my bar soap clean and prevents me from dropping on the hotel shower floor. Also makes it nice for packing as it takes up less room than a soap dish. Last a long time! Use this all the time on monthly trips and is just like new. Good buy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 3
Great soap saver
Size: Small Size
The string came off the first day I used it. But other than that it’s great. Has a nice exfoliation to it. Not not very soft at all. But this will help your soap last you a little longer
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
★★★★★ 5
New find for me and I love it
Size: Small Size
I guess I never realized what a soap bag was before. I put a small brick of soap in it and it is WONDERFUL for shaving my legs!! It suds up just enough so you can shave, but keeps the soap from getting messy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 2, 2026
★★★★★ 5
Good soap bags
Size: Small Size
Great soap bar bag. Later is good, fit is big but that's fine way better than being too tight or small. Great value.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Fantastic soap exoplanet bags
Size: Medium Size, Size: Medium Size
Very high quality bag. I was really surprised when it arrived and I saw how well it was made. I was expecting something cheap for the price. But the quality and durability of this soap bag far surpassed the price of the item. This will last for years. The material and stitching are top of the line. I can recommend this product for anyone.
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Reviewed in the United States on May 5, 2026
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