Can this unit be used to test PH?

FROM HM DIGITAL: The COM-100 is NOT a pH meter. It measures EC (electrical conductivity), TDS (total dissolved solids) and temperature. For pH, please purchase HM Digital's PH-200. For more information, please visit www.tdsmeter.com

My meter want read over 999 or am I looking at the wrong ppm?

Select 442 scale. Your meter will read more than 999 ppm.

Any trouble measuring in mS?

FROM HM-DIGITAL: The COM-100 is a professional waterproof EC/TDS meter that has three EC-TDS conversion factors and selectable modes allowing you to measure in the µs, mS, ppm and ppt scales. For more information, please visit, www.tdsmeter.com/products/com100.html

Isn't one supposed to use calibrating and cleaning solution with this?

I clean mine with a wet Q-tip. There is a TDS calibration solution I use when I recalibrate every month.

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HM Digital HMDCOM100 Waterproof EC/TDS And Amp Temperature Combo Meter

HM Digital HMDCOM100 Waterproof EC/TDS And Amp Temperature Combo Meter

Product ID: 4233698

Details

Age Range (Description)
Adult
Brand
HM Digital
Color
White/Purple
Display Type
Digital
Included Components
HM Digital And
Outer Material
Plastic

💧Measures EC/TDS precisely

🌡️Instant temperature readout

🛡️IP67 waterproof durability

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Description

💧 Stay ahead of the curve with precision water testing that works as hard as you do!

LONG LASTING POWER - Up to 100 hours of battery life means you stay in the field longer without interruptions.
SMART USER FRIENDLY - Large LCD with simultaneous temperature display, auto-off, data-hold, and low-battery indicator for seamless, efficient testing.
PRECISION IN EVERY DROP - Accurately measures EC, TDS, and temperature across four versatile scales (S, mS, ppm, ppt) for professional-grade water quality insights.
CUSTOMIZABLE CALIBRATION - Three nonlinear EC-to-TDS conversion factors (KCl, 442TM, NaCl) plus digital recalibration keep your readings sharp and tailored.
BUILT TO BRAVE THE ELEMENTS - IP67-rated waterproof housing ensures reliable performance whether you're testing pools, aquaculture, or outdoor water sources.

The HM Digital HMDCOM100 is a professional waterproof EC/TDS and temperature combo meter designed for accurate water quality testing across multiple industries. Featuring four measurement scales, customizable calibration, and a rugged IP67 waterproof design, it delivers fast 0.5-second readings on a large LCD. With smart functions like auto-off, data-hold, and a 100-hour battery life, this meter is built for reliability and ease of use in demanding environments.

Specifications

Additional Features	Auto-off function, data-hold function and low-battery indicator., Display: large and easy-to-read LCD screen includes simultaneous temperature reading., Factory Calibrated: The COM-100 meter is calibrated with a 1413 µS solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver.
Age Range Description	Adult
Asin	B0045LQFTK
Battery Life	100 hours
Best Sellers Rank	#31,717 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #5 in Conductivity Meters & Accessories #252 in Lab Meters
Brand Name	HM Digital
Color	White/Purple
Customer Reviews	4.2 4.2 out of 5 stars (189) 4.2 out of 5 stars
Display Type	Digital
Global Trade Identification Number	00891144000007
Immersion Depth	1 meters
Included Components	HM Digital HMDCOM100 Waterproof EC/TDS And Amp Temperature Combo Meter
Indoor Outdoor Usage	Outdoor
Item Length	8.9 inches
Item Type Name	HM Digital HMDCOM100 Waterproof EC/TDS And Amp Temperature Combo Meter
Item Weight	120 g
Manufacturer	HM Digital
Model	COM-100
Model Name	COM-100
Number Of Batteries	1 A batteries required.
Outer Material	Plastic
Part Number	COM-100
Power Source	Battery Powered
Product Care Instructions	Wipe Clean
Response Time	0.5 seconds
Reusability	Reusable
Specification Met	UL
Style Name	Contemporary
Unit Count	1 Count
Upc	095225177507 891144000007
Upper Temperature Range	130 °F
Warranty Description	Limited

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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KD 23.46

Duties & taxes included

In stock

Sold byAmazon KUWAITDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to KUWAIT.

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