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Item #:
166585196
HM Digital COM-100 Waterproof EC/TDS/Temp Meter
85% of respondents would recommend this to a friend
Item #:
166585196
XCD 260
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The OM-100 is a combo meter that measures electrical conductivity (EC), total dissolved solids (TDS) and temperature with a waterproof housing.
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What Stands Out
Waterproof Design
The HM Digital COM-100 features a waterproof construction, allowing it to be used in wet environments without risk of damage, making it perfect for aquaculture and hydroponic applications.
Multi-Parameter Testing
This meter measures EC, TDS, and temperature, providing comprehensive data collection in one device, which streamlines the monitoring process for water quality enthusiasts and professionals alike.
User-Friendly Interface
The COM-100 is designed with an easy-to-read digital display and intuitive controls, ensuring quick and accurate measurements, catering to both beginners and experienced users in the field.
Product Details
- Waterproof combo meter for measuring electrical conductivity (EC), total dissolved solids (TDS), and temperature.
- Electrical conductivity range: 0 - 9990 ?S; 0 - 9.99 Ms.
- TDS range: 0 - 8560 ppm (mg/L); 0 - 8.56 ppt.
- Temperature range: 0-80 degrees C; 32-176 degrees F.
- Digital calibration by push button, with detachable platinum electrodes.
- Includes 3 x 1.5V button cell batteries.
| Special Features | Waterproof |
| Display Type | Digital |
| Power Source | Battery Powered |
| Number of Batteries | 2 AAA batteries required. |
| Upper Temperature Rating | 80 Degrees Celsius |
| Response Time | 0.5 seconds |
| Reusability | Rechargeable |
| Immersion Depth | 1 Metres |
| Indoor Outdoor Usage | Outdoor |
| Resolution | [VARIES] |
| Outer Material | Plastic |
| Product Care Instructions | Wipe Clean |
| Inner Material | Plastic |
| Colour | White/Purple |
| Style Name | Professional |
| Unit Count | 1.0 count |
| Item Length | 7.3 Inches (18.5 cm) |
| Brand | HM Digital |
| Age Range Description | Adult |
| Included Components | Batteries, Handheld Meter, Wrist Strap |
| Model Name | COM-100 |
| Model Number | COM-100 |
| UPC | 095225177507 891144000007 |
| Manufacturer | HM Digital |
| Item Weight | 100 Grams |
| Item Type Name | Combo Meter |
| Manufacturer Part Number | COM-100 |
| Specification Met | NSF |
| Special feature | Waterproof |
| Age range (description) | Adult |
Who Should Buy?
-
Hydroponic Growers
Ideal for hydroponics, allowing growers to monitor essential nutrient levels for optimal plant health and yield.
-
Aquarium Owners
Perfect for aquarium enthusiasts to ensure water quality by tracking EC, TDS, and temperature accurately.
-
Laboratory Use
Useful in labs for quick and precise measurements of conductivity, total dissolved solids, and temperature in various solutions.
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Casual Users
Not ideal for casual users requiring basic measurements without advanced functionalities or precise calibration.
Product Description
HM Digital COM-100 Waterproof EC/TDS/Temp Meter
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the tolerance rate of temperature measurement?
Answer: The temperature resolution is 0.1 degrees C/F and Accuracy is +/- 2pct. -
Question:
What type of conversions does the meter offer for EC to TDS?
Answer: The meter offers non-linear conversions for KCl, 442TM or NaCl solutions, selected by user. -
Question:
What is included in the package?
Answer: The package includes a combo meter, detachable platinum electrodes and 3 x 1.5V button cell batteries (model 357A).
HM Digital pH Meters COM-100 Editorial Review
**Editorial Review of HM Digital COM-100 Waterproof EC/TDS/Temp Meter** The HM Digital COM-100 Waterproof EC/TDS/Temp Meter has garnered positive feedback from a diverse range of users, primarily highlighting its accuracy and ease of use. Customers appreciate the meter for its versatility, allowing them to measure electrical conductivity (EC), total dissolved solids (TDS), and temperature all in one device. This multifunctionality is particularly valued in various applications, such as hydroponics, aquariums, and general water quality assessments. User experiences Consistently stress the importance of the clear digital readout which makes it easy to read results quickly, even in different environmental settings. The waterproof feature is another significant advantage, enabling users to take measurements in wet conditions without fear of damaging the device. Many customers note that the reliable performance of the COM-100 significantly aids in maintaining optimal conditions for plants and fish, reinforcing the product's effectiveness among gardening enthusiasts and aquarium keepers alike. Some reviews also emphasize the importance of calibration, with many users suggesting that the accuracy can be further improved with regular calibration, thus ensuring precision in readings. While the majority of feedback is overwhelmingly positive, a few users have pointed out that the device could benefit from a more robust carrying case. Nevertheless, the overall reception indicates that the HM Digital COM-100 is a highly effective tool for anyone looking to monitor water quality with confidence and ease. **Pros and Cons** **
Customer Reviews & Ratings
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Pros
- Accurate readings for EC, TDS, and temperature.
- Easy to use with clear digital display.
- Waterproof design suitable for various conditions.
- Versatile applications in hydroponics, aquariums, and general water testing.
- Long-lasting reliability with proper calibration.
Cons
- Could improve with a more durable carrying case.
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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Chitra
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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SAO JOHN
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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Features & Benefits
- Measures EC, TDS and temperature.
- Waterproof housing.
- Digital calibration by push button.
- Detachable platinum electrodes.
- Non-linear conversions for KCl, 442TM or NaCl solutions.
- Power source: 3 x 1.5V button cell batteries (included).
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