★★★★★ 5
I give a 10,
Color: Black, Item Package Quantity: 1
I love it easy to symbol
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Reviewed in the United States on March 23, 2026
Infrared 4-channel Line tracking/following sensor (For smart robot car)
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Infrared 4-channel Line tracking/following sensor (For smart robot car)Feature: Smart car or a robot hunt (including black and white lines), walking path along the black line, also known as tracking. Smart car to avoid obstacle and cliff, anti drop. Can be applied to other automation applications of photoelectric. Specification: Working voltage: DC 3. 3V 5V Working current: try to choose more than 1A power supply Working temperature: 10C to +50C Mounting aperture: M3 screw Detection range: 1mm to 60cm adjustable, the
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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.
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4.4 ★★★★★
Based on 1764 reviews
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Product Reviews
★★★★★ 1
End table
Color: Black, Item Package Quantity: 2
Size was not what I expected
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Perfect add to bathroom
Size: 24x6 2Pcs, Color: White
These are perfect. They are just as advertised. They are easy to hang and all needed materials come included (screws and different drywall hanging options).
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Pink perfect and easy to mount
Super easy. Just mount the bracket with a small level and the shelf slides on perfect. And has screws to keep shelf from sliding off. Easy to
Do and the pink was the perfect color
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Reviewed in the United States on April 29, 2026
★★★★★ 4
Good quality, but a few issues with the hidden mounts and levelness.
Size: 35x7 2Pcs, Color: Black, Size: 35x7 2Pcs, Color: Black
These are quite nice and also sturdy. Only complaint I have is that I bought a couple of these, and on one of them, only one of them, it was difficult to get the hidden mounts to go into the holes. I think it was probably a manufacturing defect thing. Also, on that particular one, it wasnt as level as the other. Not a show stopper, but if you need a perfectly level type of mounting situation, I would be careful here.
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Reviewed in the United States on September 14, 2025
