


DFRobot Gravity: Analog TDS Sensor/ Meter for Arduino
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
DFRobot Gravity: Analog TDS Sensor/ Meter for ArduinoThe Gravity: Analog TDS Sensor Meter for Arduino is a kit that allows you to measure the total dissolved solids (TDS) in water using an Arduino board. TDS is a measure of the dissolved minerals, salts, and other substances in water, and can be used to reflect the cleanliness and quality of the water. This TDS meter kit can be used for a variety of applications, including testing the quality of domestic water, hydroponics, and other fields. It is
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- We offer a 30-day return/exchange service after receiving.
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4.1 ★★★★★
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Product Reviews
★★★★★ 5
Great purchase!
Size: Large 30.7” (77.9cm) H, Size: Large 30.7” (77.9cm) H
Easy to put together. Light but sturdy. My cat took to it right away. Will buy again once worn out!
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Reviewed in the United States on May 29, 2026
★★★★★ 4
Good value for price
Size: Medium - 25.6" H
Easy to put together, aesthetically pleasing. It is relatively sturdy for a cat scratcher. Kat does not seem super interested in this one and we have several others that he is so I’m not sure what happened there.
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Reviewed in the United States on February 8, 2026
★★★★★ 5
Scratching performance is great...it looks like a durable item...
Size: Medium - 25.6" H
My cats went crazy with it..they love it and you hear scratching...
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Well made and so Cute so easy to assemble
Size: Large - 27" H
This is really cute and comes in different sizes, so be careful, I almost got a size too small. Adorbs, they play with it throughout the day, my couch and I are so happy with it :D
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Reviewed in the United States on November 10, 2025
★★★★★ 5
I like it
Size: Small - 22.4" H
Very good. My cat really likes it.Also so decorative and nice color.😻
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Reviewed in the United States on March 8, 2026