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Item #:
20458457
HM Digital COM-300 Waterproof pH Tester Combo Meter with Temperature, EC, and TDS Meter
92% of respondents would recommend this to a friend
Item #:
20458457
XCD 385
Price Details
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Imported from USA store
QTY:
Only 12 items left in stock.
Order now and get it around Thursday, November 26
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What Stands Out
Versatile Measurements
The HM Digital Com-300 efficiently measures pH, TDS, EC, and temperature, making it ideal for aquariums, hydroponics, and laboratory applications with comprehensive aquatic health insights.
User-Friendly Display
Equipped with a large LCD display, the meter allows for easy reading of results, ensuring accurate monitoring for both professionals and hobbyists in a variety of environments.
Durable Design
Built with robust materials, the Com-300 guarantees longevity and reliability in various settings, providing long-term value for users seeking precision in their measurements.
Product Details
- HM Digital COM-300 is a waterproof combo meter that measures 4 water parameters in one device: pH, electrical conductivity (EC), total dissolved solids (TDS), and temperature. As a reliable pH meter and TDS meter in one, it is well suited for hydroponic systems, water gardens, and ponds. The water tester features 2 conductivity conversion factors for converting EC to TDS using either the 0.5 (NaCl) or 0.7 (442) factor, with selectable measurement modes across µS, mS, and ppm scales. Automatic temperature compensation (ATC) accounts for natural temperature variations to keep readings consistent, while digital calibration makes it straightforward to fine-tune for precise results. The sump-type screened inlet design adds to its practical, field-ready build. Whether you need a dependable pH test tool or full water quality monitoring, HM Digital delivers accurate multi-parameter readings in a single handheld unit.
| Features | Automatic Temperature Compensation |
| Brand | HM Digital |
| Display | LCD |
| Has written warranty | No |
| Height | 8.1 in (20.57 cm) |
| Pack quantity | 1 |
| Model | COM-300 |
| Item Weight | 0.4 lbs (180 grams) |
Who Should Buy?
-
Hydroponics Enthusiasts
Ideal for individuals managing nutrient levels in hydroponic systems, ensuring healthy plant growth through accurate measurements.
-
Aquarium Owners
Perfect for aquarium hobbyists needing to monitor water quality accurately, which is crucial for fish health and environment.
-
Laboratory Technicians
Beneficial for lab settings requiring precise pH, TDS, and EC measurements in various chemical and biological experiments.
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Casual Users
Not suitable for casual users or beginners who may find the calibration and readings too complex for simple tasks.
Product Description
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Customer Questions & Answers
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How to Shop HM Digital COM-300 Waterproof pH Tester Combo Meter Online From Ubuy?
Answer: It’s easy to shop HM Digital COM-300 Waterproof pH Tester Combo Meter online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location. -
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Is HM Digital COM-300 Waterproof pH Tester Combo Meter Available to Shop Online in Anguilla?
Answer: Yes, at Ubuy Anguilla this product is available for you to shop at a reasonable price. The HM Digital COM-300 Waterproof pH Tester Combo Meter is not available locally but you can trust us with our express shipping services. -
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Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.
HM Digital PH and Thermometers Editorial Review
HM Digital COM-300 Waterproof pH Tester Combo Meter with Temperature, EC, and TDS Meter is a versatile tool featuring automatic temperature compensation, making it easy to get accurate readings in varying conditions. Users appreciate its lightweight design and LCD display, which enhances usability. Although this model doesn't come with a written warranty, its reliability as a pH tester is noted in several reviews. Many find that its combination of pH and TDS measurement capabilities in one device meets their needs effectively, making it a favorite for both professionals and enthusiasts.
Customer Reviews & Ratings
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Pros
- Automatic temperature compensation for accurate readings
- Lightweight and portable for easy handling
- LCD display for clear visibility in any light
- Combination of pH and TDS measurements
- User-friendly design for quick operation
Cons
- Does not include a written warranty
Platform Trust & Buyer Confidence
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Mona
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“Everything was efficient and fast. ”
05 November 2026 · via Trustpilot
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05 November 2026 · via Trustpilot
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William
Verified buyer
“I can't fault this purchase. Had a scarce part i needed, cheaper than i could source it in the UK, ordered and was followed up with great communication and speedy delivery of a very well packaged part.”
06 November 2026 · via Trustpilot
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Andrew
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“Fast delivery, good and secure packaging, everything was fine and with no problems.”
06 November, 2026 · via Trustpilot
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Stephen
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“I am very happy with my insoles purchase, they make my work boots very comfortable and soft to walk on and even mitigate the vibration from driving the truck all day. I would highly recommend this company for online purchases, reliability of product delivery and value for money.”
07 November 2026 · via Trustpilot
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XCD 385
Order now and get it around Thursday, November 26
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