
HM Digital (TDS-EZ) TDS Meter-Monitor for "Total Dissolved Solids"
TDS-EZ Total Dissolved Solids Meter
Portable digital meter for testing water purity anywhere. Ideal for verifying RO system performance, checking drinking water quality, and monitoring filtration effectiveness.
Accurate water quality testing without complexity
Advanced Microprocessor
Highly efficient and accurate TDS readings from 0 to 9990 ppm. Resolution of 1 ppm up to 999, then 10 ppm increments with blinking x10 indicator.
Hold Function
Saves measurements on screen for convenient reading and recording. No need to rush when taking multiple readings or logging data.
Auto-Off Technology
Meter shuts off automatically after 10 minutes of non-use to conserve battery life. Built for field use and portability.
Factory Calibrated
Pre-calibrated with 342 ppm NaCl solution. Recalibration possible with mini-screwdriver. Includes reference TDS chart on back of unit.
Durable Housing
Translucent blue housing is strong and impact-resistant. Large LCD screen is easy to read in various lighting conditions.
Universal water testing applications
The HM Digital TDS-EZ works with any water source. Ideal for testing RO system output, aquariums, hydroponics, pools, spas, drinking water, well water, and any application where dissolved solids monitoring matters. Use to verify membrane performance, check filter effectiveness, or confirm water quality before and after treatment.
Best Value
Economy model with professional-grade accuracy for end-users and technicians
Easy to Use
Simple operation with clear LCD display and intuitive controls
Portable Design
Compact meter fits in pocket or toolbox for testing anywhere
Reference Chart
Includes TDS values sticker explaining what different readings mean
TDS-EZ Total Dissolved Solids Meter
Portable digital meter for testing water purity anywhere. Ideal for verifying RO system performance, checking drinking water quality, and monitoring filtration effectiveness.
Accurate water quality testing without complexity
Advanced Microprocessor
Highly efficient and accurate TDS readings from 0 to 9990 ppm. Resolution of 1 ppm up to 999, then 10 ppm increments with blinking x10 indicator.
Hold Function
Saves measurements on screen for convenient reading and recording. No need to rush when taking multiple readings or logging data.
Auto-Off Technology
Meter shuts off automatically after 10 minutes of non-use to conserve battery life. Built for field use and portability.
Factory Calibrated
Pre-calibrated with 342 ppm NaCl solution. Recalibration possible with mini-screwdriver. Includes reference TDS chart on back of unit.
Durable Housing
Translucent blue housing is strong and impact-resistant. Large LCD screen is easy to read in various lighting conditions.
Universal water testing applications
The HM Digital TDS-EZ works with any water source. Ideal for testing RO system output, aquariums, hydroponics, pools, spas, drinking water, well water, and any application where dissolved solids monitoring matters. Use to verify membrane performance, check filter effectiveness, or confirm water quality before and after treatment.
Best Value
Economy model with professional-grade accuracy for end-users and technicians
Easy to Use
Simple operation with clear LCD display and intuitive controls
Portable Design
Compact meter fits in pocket or toolbox for testing anywhere
Reference Chart
Includes TDS values sticker explaining what different readings mean
Original: $23.99
-65%$23.99
$8.40Description
TDS-EZ Total Dissolved Solids Meter
Portable digital meter for testing water purity anywhere. Ideal for verifying RO system performance, checking drinking water quality, and monitoring filtration effectiveness.
Accurate water quality testing without complexity
Advanced Microprocessor
Highly efficient and accurate TDS readings from 0 to 9990 ppm. Resolution of 1 ppm up to 999, then 10 ppm increments with blinking x10 indicator.
Hold Function
Saves measurements on screen for convenient reading and recording. No need to rush when taking multiple readings or logging data.
Auto-Off Technology
Meter shuts off automatically after 10 minutes of non-use to conserve battery life. Built for field use and portability.
Factory Calibrated
Pre-calibrated with 342 ppm NaCl solution. Recalibration possible with mini-screwdriver. Includes reference TDS chart on back of unit.
Durable Housing
Translucent blue housing is strong and impact-resistant. Large LCD screen is easy to read in various lighting conditions.
Universal water testing applications
The HM Digital TDS-EZ works with any water source. Ideal for testing RO system output, aquariums, hydroponics, pools, spas, drinking water, well water, and any application where dissolved solids monitoring matters. Use to verify membrane performance, check filter effectiveness, or confirm water quality before and after treatment.
Best Value
Economy model with professional-grade accuracy for end-users and technicians
Easy to Use
Simple operation with clear LCD display and intuitive controls
Portable Design
Compact meter fits in pocket or toolbox for testing anywhere
Reference Chart
Includes TDS values sticker explaining what different readings mean











