Skip to content
HM Digital Replacement Probe COM - 300 - Green Thumb Depot
HM Digital Replacement Probe COM-300

HM Digital Replacement Probe COM-300

See more by HM Digital
SKU: HM-SP-C3

Official Distributor

$62.95

Or

Monthly payments start at:

$1.74/mo

Learn More

Check Icon

Monthly Payment Start at:

$1.74/mo

Learn More

  • Ships in 1-5 days at most
Contact us about commercial pricing

Notify me when back in stock

Check Icon Order Processed in 12 hours
Check Icon Free Shipping Over $200 (Exclusive Apply)
Check Icon No Sales Tax! (Outside Nevada, on most products)

Free Shipping

On most orders

Call Us

(833) 416-0375

Mon-Fri 9am-6pm CST

Lowest Price Guranteed

There is never a better price,

we can always price match

No Sales Tax

Absolutely no tax on any purchase

Easy Returns

Always hassle free

Free Shipping

Lowest Price Gurantee

No Sales Tax

Easy Returns

Is the HM Digital Replacement Probe for COM-300 the Right Choice for You?

To keep your COM-300 meter performing at its peak, the HM Digital Replacement Probe is a must-have. This probe is designed for accurate and reliable readings, ensuring precise measurements of TDS (Total Dissolved Solids) and EC (Electrical Conductivity). 

  • Features & Benefits
  • Product Specifications
  • What is included?
  • Warranty Policy

HM Digital Replacement Probe for COM-300

The HM Digital Replacement Probe is designed to ensure precise and consistent readings with your COM-300 meter. Perfect for applications like water quality testing, hydroponics, and scientific analysis, this probe delivers accurate TDS (Total Dissolved Solids) and EC (Electrical Conductivity) measurements to guarantee reliable results.

  • Ensures accurate TDS and EC readings for dependable water quality.
  • Compatible with COM-300 meters for straightforward installation 
  • Constructed from high-quality materials for long-lasting performance.
  • Easy-to-install design reduces downtime and provides reliable, consistent.

Why Choose the HM Digital Replacement Probe for COM-300?

The HM Digital Replacement Probe is engineered to optimize the performance and accuracy of your COM-300 meter. Perfect for applications such as water quality analysis, hydroponics, and scientific research, this probe provides accurate readings of TDS (Total Dissolved Solids) and EC (Electrical Conductivity). Replacing the probe regularly ensures that your meter continues to perform at its highest level, delivering reliable and consistent results for all of your measurement needs.

Why HM Digital?

HM Digital is a trusted name in water quality testing, offering innovative and reliable solutions for growers, aquarium enthusiasts, and professionals. Designed for precision, its advanced meters provide accurate TDS and temperature readings, ensuring optimal water conditions. With user-friendly features like digital calibration and a durable, water-resistant design, HM Digital products help you maintain consistency and efficiency in your water monitoring routine.

Why Buy From Us?

At GreenThumbDepot, you're not just another sale to a faceless corporation. You're partnering with a team genuinely invested in your success. Our legendary customer service, combined with a promise of unbeatable prices, sets us apart. We're here for you, always.

FAQ Section

What is the HM Digital Replacement Probe for COM-300 used for?
The HM Digital Replacement Probe is designed to ensure precise TDS (Total Dissolved Solids) and EC (Electrical Conductivity) readings for your COM-300 meter, helping you achieve accurate water quality measurements.
Why should I replace my COM-300 probe?
Replacing the probe ensures your COM-300 meter continues to deliver reliable, accurate TDS and EC readings. Over time, probes wear out, causing inaccurate measurements, so it's best to replace it to maintain precision.
Can I use my old COM-300 probe after its recommended lifespan?
It is not recommended to continue using an old probe past its effective lifespan. Doing so could lead to poor performance, incorrect readings, and unreliable data, so it's best to replace it when it shows signs of wear.
How do I replace the TDS/EC probe on the COM-300 meter?
Replacing the probe is simple: unscrew the old probe from your COM-300 meter and securely attach the new one. Ensure the probe is correctly fitted to ensure accurate measurements.
How often should I replace the TDS/EC probe for the COM-300?
You should replace the probe when you notice fluctuating readings, difficulty calibrating, or inconsistencies in measurements. Typically, this occurs after months of regular use.
Will the new replacement probe improve the accuracy of my COM-300 meter?
Yes, replacing the probe with a new one will restore the full accuracy of your COM-300 meter, ensuring reliable and precise TDS and EC readings for your water quality testing.
How should I store the replacement probe when not in use?
Store the replacement probe in a cool, dry place, away from direct sunlight and moisture. This will help maintain its longevity and effectiveness for accurate future readings.
What is included in the package?
The package includes one HM Digital Replacement TDS/EC Probe for the COM-300 meter, designed to ensure accurate and dependable water quality readings with minimal hassle.

Specifications

HM Digital Replacement Probe for COM-300 Specifications
Compatibility Designed for use with the HM Digital COM-300 meter
Measurement Types Measures pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), and Temperature (TEMP)
Temperature Measurement Equipped with an integrated thermometer for accurate temperature readings
Probe Material Constructed from durable ABS material for long-lasting performance
Sensor Pins Stainless steel sensor pins ensure reliable readings
pH Sensor Glass pH sensor with reference tube for accurate pH measurements
Cap Design Includes a cap with sponge for storing the probe in the solution
Cable Length Includes a cable for easy handling and convenient placement
Easy Installation Simple to install and compatible with the COM-300 meter for minimal downtime
Replacement Frequency Replace when performance starts to degrade or readings become inconsistent
Country of Origin Manufactured in Korea

What's Included?

The HM Digital Replacement Probe for COM-300 package contains:

  • One replacement probe for the HM Digital COM-300 meter to ensure precise and reliable water quality measurements
  • Measures pH, Total Dissolved Solids (TDS), Electrical Conductivity (EC), and Temperature (TEMP) for complete water analysis

Warranty Policy

Please check out the manufacturers website for Warranty related issues.

>