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.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

المساعدة تتبع الطلب

الحساب عربة التسوق

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

المساعدة تتبع الطلب

الحساب عربة التسوق

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 & Temp

⏱️0.5s Fast Response Time

🛡️IP67 Waterproof Housing

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

AED 276

Duties & taxes included

In stock

Sold byAmazon UAEDelivered 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 UAE.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

💧 Take control of your water quality like a pro — precision meets durability in one sleek meter!

SMART POWER MANAGEMENT - Auto-off, data-hold, and low-battery indicators maximize battery life and usability during critical testing.
RUGGED WATERPROOF DESIGN - IP67-rated housing ensures reliable performance even in wet, outdoor, or industrial environments.
VERSATILE MEASUREMENT SCALES - Four selectable scales (S, mS, ppm, ppt) plus three EC-to-TDS conversion factors for tailored testing precision.
PRECISION WATER QUALITY CONTROL - Accurately measures electrical conductivity, total dissolved solids, and temperature for total water chemistry mastery.
USER FRIENDLY CALIBRATION DISPLAY - Factory calibrated with easy digital recalibration and a large LCD screen showing simultaneous temperature readings.

The HM Digital HMDCOM100 is a professional-grade, waterproof EC/TDS/temperature combo meter designed for precise water quality testing across diverse applications including hydroponics, pools, labs, and water treatment. Featuring IP67 waterproofing, fast 0.5-second response, multiple measurement scales, and easy digital calibration, it empowers users to monitor and optimize water chemistry with confidence and convenience.

Specifications

ASIN	B0045LQFTK
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
Battery Life	100 Hours
Best Sellers Rank	#51,629 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9 in Conductivity Meters & Accessories #422 in Lab Meters
Brand Name	HM Digital
Color	White/Purple
Customer Reviews	4.1 4.1 out of 5 stars (189)
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 Grams
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
Smart Home Compatibility	Not Smart Home Compatible
Specification Met	UL
Style Name	Contemporary
UPC	095225177507 891144000007
Unit Count	1.0 Count
Upper Temperature Range	130 Degrees Fahrenheit
Warranty Description	Limited

Common Questions

Are the products genuine and authentic?+

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.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.