Login
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
 Next

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
Easy Shipping

Quick Dispatch:

Your HM Digital pH/TDS/EC/Temp Meter Model COM-300 orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your HM Digital pH/TDS/EC/Temp Meter Model COM-300 ships.

Need Help?
Questions about HM Digital pH/TDS/EC/Temp Meter Model COM-300, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for HM Digital pH/TDS/EC/Temp Meter Model COM-300 in your area.

Get Shipping Estimates

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
4.7 ★★★★★
Based on 1429 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Jacci
Boise, US
★★★★★ 5
Perfect for temperature rioting partners lol
Team Name: Cooling Comforter, Size: King(104"x90"), Color: 01grey
Awesome material exactly what I was looking for. Definitely stays cold. It’s perfect for my bf and he can now stay on his side of the bed with his blanket and stop turning the ac on lol
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
M
Verified Purchase
Meagan Hively
Grantham, US
★★★★★ 5
THE BESTTTT!
Team Name: Cooling Comforter, Size: King(104"x90"), Color: 01cream White
The BEST cooling blanket i have ever owned. it’s not too heavy or light. it doesn’t pile after washing a few times. I can not sleep without it. i have bought this for several family member’s and for my son and all say it’s be best blanket they have owned. BUY IT!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
D
Verified Purchase
Danel
Massapequa, US
★★★★★ 5
Cooling queen size comforter set
Team Name: Cooling Comforter, Size: Full/Queen(90"x90"), Color: 01dark Grey, Team Name: Cooling Comforter, Size: Full/Queen(90"x90"), Color: 01dark Grey
I absolutely love this cooling comforter set for my queen size bed. It’s not only cooling, but it feels amazing and very soft.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
J
Verified Purchase
~JT~
Lake Worth, US
★★★★★ 5
Classy
Color: White Seersucker, Size: King(108"x90")
Simple yet classy. Lightweight. Quick and easy to make bed! Love it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
R
Verified Purchase
Rachiel Spiewak
Los Angeles, US
★★★★★ 5
Love it coolomga
Color: Emerald Green Seersucker, Size: King(108"x90")
So buttery soft amazing blanket especially for hot nights when I still want to cover up but its 100 degrees outside this blanket is amazing
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026

recommand products

British Saxon idols. Sun Moon Tuisco Woden Thor Friga Seater Crodo Weekdays 1748
British Saxon idols. Sun Moon Tuisco Woden Thor Friga Seater Crodo Weekdays 1748
22.00
 The west end of Westminster Abbey. London 1751 old antique print picture
The west end of Westminster Abbey. London 1751 old antique print picture
30.00
 Canton du Valais. Wallis Vallese Vallais. Suisse Schweiz. DUVOTENAY 1837 map
Canton du Valais. Wallis Vallese Vallais. Suisse Schweiz. DUVOTENAY 1837 map
59.95
 WW1 German Typical Aeroplane raids 1914-1916 London Lowestoft Kent 1930 map
WW1 German Typical Aeroplane raids 1914-1916 London Lowestoft Kent 1930 map
26.95
 Aix La Chapelle. City plan of Aachen, Germany. GENTS MAG 1748 old antique map
Aix La Chapelle. City plan of Aachen, Germany. GENTS MAG 1748 old antique map
174.00