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HM DIGITAL Manuals & User Guides

User manuals, setup guides, troubleshooting help, and repair information for HM DIGITAL products.

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HM DIGITAL manuals

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HM Digital PH-200 Waterproof pH Meter User Manual

PH-200 • September 1, 2025

Comprehensive user manual for the HM Digital PH-200 Waterproof pH Meter, covering setup, operation, maintenance, troubleshooting, and specifications.

HM Digital TDS-EZ Water Quality TDS Tester Instruction Manual

TDS-EZ • August 24, 2025

Comprehensive instruction manual for the HM Digital TDS-EZ Water Quality TDS Tester, covering setup, operation, maintenance, troubleshooting, and specifications.

HM Digital EC-3M EC Meter Testing Electrical Conductivity for Water User Manual

EC-3M • August 23, 2025

HM Digital (EC-3M) Conductivity Meter EC/CE and Temperature

HM Digital TDS-3 Handheld TDS Meter With Carrying Case, 0 - 9990 ppm TDS Measurement Range, 1 ppm Resolution, +/- 2% Readout Accuracy

TDS-3 • August 21, 2025

A TDS meter (aka ppm pen, nutrient tester, tds stick) is an inexpensive and convenient digital tool to instantly check your overall water quality. TDS = Total Dissolved…