HM Digital HydroMaster Continuous pH/EC/TDS/Temp Monitor Model HM-500

HM Digital HydroMaster Continuous pH/EC/TDS/Temp Monitor Model HM-500

Marsoni

M251S

$179.50

Get it in 3 business days with 1 day shipping. Friday, May 29

HM Digital HydroMaster Continuous pH/EC/TDS/Temp Monitor Model HM-500HydroMaster Digital tester makes monitoring water easier than ever by reading the levels that matter most and providing accurate readings that you can depend on. Continuous pH EC TDS Temp monitor with rechargeable battery. Portable, wall mount or benchtop use. Tests pH at a range of 014 pH, temperatures from 30F176F, TDS from 09999 ppm and EC from 09999 S. Stores up to 20 measurement readings, so you can monitor changes over time. LCD touch type

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We offer a 30-day return/exchange service after receiving.
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I bought this kit specifically because the listing clearly states that it is compatible with my Xiaomi robot vacuum. Before purchasing, I double-checked all the specifications. However, when the product arrived, I discovered that the internal filter is smaller than the original one and does not fit correctly. This makes the filter unusable for my vacuum. The seller should update the compatibility information because it is misleading for buyers.

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Reviewed in the United States on April 9, 2026

Verified Purchase

Robert Hood

Fort Morgan, US

★★★★★ 5

Great quality dust bags – perfect fit for my eufy robot vacuum!

Size: C10 / C20 Bags

These dust bags are exactly what I needed for my eufy Omni C20! They fit perfectly, install easily, and the 3-layer design really does help control dust and odors. The large 3.6L capacity means I don’t have to change them too often, even with daily vacuuming. Great value for the price, and the quality feels just as good as the original eufy bags.

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Reviewed in the United States on September 15, 2025

Verified Purchase

Petey B.

Natrona Heights, US

★★★★★ 5

Works well

Size: C10 / C20 Bags

These bags are great!!

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Reviewed in the United States on March 23, 2026

Verified Purchase