

💧 Measure purity, master quality — don’t just test water, own it!
The HM Digital TDS-EZ is a sleek, durable water quality tester offering a broad 0-9990 ppm measurement range with 1 ppm resolution and 3% accuracy. Designed for professionals and enthusiasts alike, it features a large LCD, auto-off power saving, and a long-lasting battery life of approximately 1000 hours. Factory calibrated and user recalibratable, this compact, translucent blue device is perfect for monitoring tap water, filtration systems, hydroponics, aquariums, and more—ensuring you never compromise on water purity.


| ASIN | B002C0A7ZY |
| Brand | HM Digital |
| Brand Name | HM Digital |
| Capacity | 9999 Picoliters |
| Color | blue |
| Colour | blue |
| Country of Publication | China |
| Customer Reviews | 4.4 out of 5 stars 7,343 Reviews |
| Global Trade Identification Number | 00891144000168 |
| Included Components | meter |
| Item Dimensions | 25 x 32 x 155 millimeters |
| Item Type Name | meter |
| Item Weight | 2 Ounces |
| Item dimensions L x W x H | 25 x 32 x 155 millimeters |
| Item height | 6.1 inches |
| Item weight | 2 Ounces |
| Manufacturer | HM Digital, Inc. |
| Material | Plastic |
| Material Type | Plastic |
| UPC | 712641079917 891144000168 |
| Unit Count | 1 Count |
ر**ة
ممتاز
ممتاز الجهاز ويقس نقاوة الماء صح 👌🏽
A**I
Very high quality!
Tested this straight from the package inside a 342ppm fluid solution,and got it right straightaway without any calibration.Also it has the ability to calibrate using a screw driver,unlike many other tds pen out there.
A**F
good one
very useful to detect purity of water
P**N
Reliable
Use it for my aquariums and the results appear consistent. Easy to use. No calibration required.
A**R
excellent tool
excellent tool
J**.
The tester stop working after one month of use
I bought the tester a month ago. I would use it maybe twice a week., but today the battery low display came on and I replaced the batteries with new batteries. I made sure that no water went into the battery compartment and while using it made sure not to submerge the tester pass the test line. Now after replacing the batteries all I get on the display reading is 0PPM. I tried swapping them out with other batteries and same thing displayed. I'm really not happy with the out come after purchasing the tester a month ago.
T**Y
EASY TO BROKE AFTER 4 MONTHS OF PURCHASING.
I ORDER THE ITEM 4 MONTHS AGO BUT NOW ITS BROKEN ALREADY. DURABILITY IS 0/10
A**D
Came with flat battery
The battery is flat so I can’t try it
Trustpilot
1 month ago
1 month ago