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Top Pick Hm Digital Com-300 Ph/tds/ec/temp Meter Gadget [gw0TNLzB]

$23.99 $76.99 -69%

HM Digital COM-300L pH/EC/TDS/Temp MeterThe HM Digital COM-300L pH/EC/TDS/Temp Meter is a versatile and advanced tool designed for professional water quality assessment. This waterproof meter offers comprehensive measurements of hydrogen potential (p

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

The HM Digital COM-300L pH/EC/TDS/Temp Meter is a versatile and advanced tool designed for professional water quality assessment. This waterproof meter offers comprehensive measurements of hydrogen potential (pH), electrical conductivity (EC), total dissolved solids (TDS), salinity, and temperature, making it an ideal solution for various water-related applications. With its extended design, it can easily measure parameters in large tanks or drums, providing accurate and reliable data for water quality management. Key Features:
  • Measure pH, EC, TDS, salinity, and temperature in a single device
  • Five scales for flexibility: pH, µS, mS, ppm 0.5 (NaCl) Scale, and 0.7 (442™) Scale
  • Automatic Temperature Compensation (ATC) for precise temperature measurements
  • Waterproof housing with protection class IP-67 for durability and ease of use

Product Specifications and Technical Details

The COM-300L meter boasts a wide range of specifications that cater to precise water quality assessments. It features a pH range of 0-14, an EC range of 0-9990 µS and 0-9.99 mS, and a TDS range of 0-8560 ppm (0.7 Scale) and 0-5000 ppm (0.5 Scale). The temperature range extends from 0-55 °C (32-130°F), with a resolution of 0.1 °C/F. The meter offers a non-linear conversion for KCl, 442™, or NaCl solutions, allowing for user-selectable EC to TDS conversion factors. With its removable platinum electrodes and pH glass sensor, the probe is designed for accurate and long-lasting performance. Technical Details:
  • Resolution: 0-99: 0.1 µS/ppm/ 0.01mS; 100-999: 1 µS/ppm; 1000-9990: 10 µS/ppm
  • Accuracy: +/- 2%
  • Probe: Removable platinum electrodes and pH glass sensor with support tube electrodes
  • Housing: Waterproof (floats) with protection class IP-67

Practical Uses and Benefits

The HM Digital COM-300L pH/EC/TDS/Temp Meter is an essential tool for professionals and hobbyists alike. Whether you are a hydroponic gardener, an aquarium enthusiast, or a water quality expert, this meter provides the accuracy and convenience you need. Its practical features, such as digital calibration, auto power off, data hold, and low battery indicator, make it a reliable companion for daily water quality monitoring. With its comprehensive measurements and user-friendly design, the COM-300L meter is the perfect solution for anyone looking to maintain optimal water conditions for their plants, fish, or other aquatic life. Target Audience:
  • Hydroponic gardeners and farmers
  • Aquarium and pond enthusiasts
  • Water quality professionals and researchers

What Our Customers Say

December 30, 2025

Absolutely no complaints!

A great product. And I'm happy.

- Bridgette G..

December 30, 2025

Absolutely no complaints!

This is a very, very nice item.

- Annette F..

December 30, 2025

Absolutely no complaints!

It’s a very solid and very great tool.

- Lilith N..

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