8-in-1 Water Quality Sensor - PH/EC/TDS/Temp/ORP/Salinity/Specific Gravity Tester with RS485 Output

Marsoni

M251S

$96.00

Get it in 3 business days with 1 day shipping. Friday, May 29

8-in-1 Water Quality Sensor - PH/EC/TDS/Temp/ORP/Salinity/Specific Gravity Tester with RS485 Output8 in 1 Water Quality Sensor PH EC TDS Temp ORP Salinity Specific Gravity Tester with RS485 Output Product Overview CWT MS8 S RS485 8 in 1 water quality sensor features a high sensitivity, high temperature pressure resistant pH glass electrode thats adaptable and easy to maintain. As an 8 in 1 device, it measures pH, ORP, temperature, TDS, conductivity, specific gravity, and salinity (ppt %). Powered by a 32 bit MCU and RTOS system, it ensures precise

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What an amazing book! This book is the version with incredible photos as part of the history story. I couldn't believe how vivid this was when I opened up the book. I'd been wanting the book for a while, because so little is told of the enslaved people's history in this country. It is important for us to understand our past, and without books like this one we do not have the full story. Thank you to the authors who put together this beautiful book.

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Reviewed in the United States on October 22, 2025

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Matthew Gregory

Phoenix, US

★★★★★ 5

This book is well written, insightful and well illustrated.

Format: Hardcover

Very interesting, well written and illustrated book. I haven’t experienced this through the eyes of people other than myself. We all believe we are on the correct side of history but the truth is a very strong thing when introduced to you. The truth is a beacon to the feet of our country as we move forward but we have gone off path. Thankfully it is not too late because we are all human.

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Reviewed in the United States on October 28, 2025

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Rob Byrd

Lake Worth, US

★★★★★ 5

Saw this book at the African American Museum and had to have it!

Format: Hardcover

Excellent book, and the pictures give more realism to history!

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Reviewed in the United States on February 17, 2026

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