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HM Digital pH/TDS/EC/Temp Meter Model COM-300
HM Digital pH/TDS/EC/Temp Meter Model COM-300
HM Digital pH/TDS/EC/Temp Meter Model COM-300
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HM Digital pH/TDS/EC/Temp Meter Model COM-300

Marsoni M251S
Sale price$163.15
Pay 4 payments of $40.79 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
HM Digital pH/TDS/EC/Temp Meter Model COM-300The COM 300 is an advanced waterproof combo meter with superior accuracy. The meter measures four parameters: pH, electrical conductivity (EC), total dissolved solids (TDS) and temperature. Features include 2 different conductivity conversion factors to convert EC to TDS using the 0. 5 (NaCl) or 0. 7 (442TM), as well as selectable modes for measurements in the S, mS and ppm scales. The meter incorporates automatic temperature compensation (ATC) to
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  • Fast: 2-3 business days
  • Express: 1-2 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
4.8 ★★★★★
Based on 2492 reviews
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Verified Purchase
Gram2Four
Los Angeles, US
★★★★★ 1
Construction is quite inferior and it stays badly wrinkled
Size: X-Large, Color: Dark Blue
Inferior construction. The mock turtle neck did not stay up but folded over.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
D
Verified Purchase
Donna
Carnegie, US
★★★★★ 5
Mock shirt for everyday wear.
Color: Gray Green, Lotus Pink, Sky Blue, Size: X-Large
Love how soft the fabric is and wears very well. Very happy with purchase and have bought other colors as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
N
Verified Purchase
Nick Casad
Belleville, US
★★★★★ 3
Amazon brand looks bad
Color: White, Light Gray, Black, Size: X-Large
II think the quality is poor the fabric is thin and the moc collar won't stand up
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 20, 2025
A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 5
Satisfied
Color: Brown, White, Black, Size: Large
Nice fit and comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
T
Verified Purchase
4th Cav Trooper
Natrona Heights, US
★★★★★ 5
Nice material, holds collar shape well.
Color: Wine Red, Navy Blue, Black, Size: Medium
Good value for the money. You can machine wash and dry on low heat, in my opinion. Laying flat is too much of a pain.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 30, 2026

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