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FAQ Section

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What parameters does the HM Digital Waterproof Professional Series Meter measure? \n
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This meter measures pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), salinity, and temperature.
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How do I calibrate the HM Digital Waterproof Meter? \n
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The meter features push-button digital calibration, allowing precise adjustments at any point within its range.
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Does this meter have automatic temperature compensation (ATC)? \n
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Yes, the device includes ATC with three selectable temperature coefficients for improved accuracy.
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Is the meter waterproof? \n
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Yes, it has an IP-67 waterproof rating, meaning it is fully submersible and floats on water.
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What type of batteries does it use? \n
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The meter operates on two AAA alkaline batteries, which are included in the package.
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Does this meter have a replaceable sensor? \n
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Yes, the device uses a replaceable sensor (model SP-C3), allowing extended use and cost-effective maintenance.
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What is the accuracy of the readings? \n
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The meter provides an accuracy of ±2% for TDS/EC readings and ±0.01 for pH measurements, ensuring highly reliable results.
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What accessories are included with the meter? \n
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The package includes a translucent cap, pH 4 & 7 calibration solutions, pH storage solution, lanyard, and 2 AAA batteries.
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Specifications \"\"\n

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HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter Specifications\"\"
pH Range0 – 14 pH
EC Range0 – 9990 µS; 0 – 9.99 mS
TDS Range0 – 8560 ppm (0.7 Scale); 0 – 5000 ppm (0.5 Scale)
Temperature Range0-55 °C; 32-130°F
Resolution0-99: 0.1 µS/ppm/ 0.01mS
100-999: 1 µS/ppm
1000-9990: 10 µS/ppm
Temperature resolution: 0.1 °C/F
Accuracy±2%
EC to TDS Conversion FactorNon-linear conversions for KCl, 442TM, or NaCl solutions, selectable by the user
ProbeDetachable platinum electrodes & pH glass sensor with reference tube electrodes
HousingIP-67 Waterproof (submersible; floats)
Power Source2 x AAA batteries (included)
Dimensions18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches)
Weight164g (5.8 oz)
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What’s in the Box? \"\"\n

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The HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter package includes:

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  • \n\"\" HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter\n
    • \n
  • \n\"\" Replaceable pH glass sensor & detachable platinum electrode\n
    • \n
  • \n\"\" 2 x AAA batteries (pre-installed)\n
    • \n
  • \n\"\" User manual with step-by-step setup, calibration, and maintenance instructions\n
    • \n
  • \n\"\" pH 4 & pH 7 calibration solutions and pH storage solution\n
    • \n
  • \n\"\" Protective cap and lanyard for added convenience\n
    • \n
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Warranty Policy

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Please check out the manufacturers website for Warranty related issues.

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HomeStore

HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter

HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter

Is the HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter Right for You?

If you're looking for a professional-grade water quality testing meter, the HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter is an outstanding choice. Designed for a wide range of applications, including hydroponics, water treatment, scientific research, and pool maintenance, this meter delivers precise readings for pH, EC, TDS, salinity, and temperature. 

  • Features & Benefits
  • Product Specifications
  • What is included?
  • Warranty Policy

HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter

The HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter is an advanced, high-precision water quality tester designed for professional and home applications. Ideal for hydroponics, water purification, scientific research, and pool maintenance, this meter ensures accurate and reliable measurements with ease.

  • Measures pH, EC, TDS, salinity & temperature.
  • Five scales: µS, mS, ppm for versatility.
  • ATC with three coefficients for precision.
  • Waterproof IP67-rated for durability.

Why Choose the HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter?

The HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter is a high-precision instrument designed for accurate water quality analysis. It provides reliable measurements for pH, EC, TDS, salinity, and temperature, making it ideal for hydroponics, water treatment, scientific testing, and pool maintenance. 

Why HM Digital?

HM Digital is a trusted name in water quality testing, offering innovative and reliable solutions for growers, aquarium enthusiasts, and professionals. Designed for precision, its advanced meters provide accurate TDS and temperature readings, ensuring optimal water conditions. With user-friendly features like digital calibration and a durable, water-resistant design, HM Digital products help you maintain consistency and efficiency in your water monitoring routine.

Why Buy From Us?

At GreenThumbDepot, you're not just another sale to a faceless corporation. You're partnering with a team genuinely invested in your success. Our legendary customer service, combined with a promise of unbeatable prices, sets us apart. We're here for you, always.

Excellent 4.8 out of 5 based on 1,247 reviews
If I could rate 6 stars I would!
If I could rate 6 stars I would! My representative Edouard B. has been shockingly responsive! Like - oh my god - an actual SERVICE oriented company. He's dug into my odd connectivity issues I've been having - and following up in an AMAZINGLY timey manner. No shit. You'll be impressed! (And the price was also unbeatable, quick shipping...it's all PERFECT). Thank you Ed!!
Reviewer
Jim D
Customer service was outstanding great…
Customer service was outstanding great people to deal with they understand your needs and they will do their best to fulfill them there is no way I can complain about them because they are the best help out there.Thanks green thumb depot. I'll definitely order from them again
Reviewer
Glenn Appleton
The machine is doing just what my…
The machine is doing just what my salesman told it would do (I appreciate you Ed thank you) . The machine is what we need for our new business we're starting up, soon to be llc and licensed. We are getting a lot of clients wanting our services. Ed I will be needing more of your products, thank you again.
Reviewer
Freddie
Fantastic
Great prices, fantastic customer service, and mind blowing shipping! Incredible. Will be using again and telling anyone in need.
Reviewer
Kar
←
→

FAQ Section

What parameters does the HM Digital Waterproof Professional Series Meter measure?
This meter measures pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), salinity, and temperature.
How do I calibrate the HM Digital Waterproof Meter?
The meter features push-button digital calibration, allowing precise adjustments at any point within its range.
Does this meter have automatic temperature compensation (ATC)?
Yes, the device includes ATC with three selectable temperature coefficients for improved accuracy.
Is the meter waterproof?
Yes, it has an IP-67 waterproof rating, meaning it is fully submersible and floats on water.
What type of batteries does it use?
The meter operates on two AAA alkaline batteries, which are included in the package.
Does this meter have a replaceable sensor?
Yes, the device uses a replaceable sensor (model SP-C3), allowing extended use and cost-effective maintenance.
What is the accuracy of the readings?
The meter provides an accuracy of ±2% for TDS/EC readings and ±0.01 for pH measurements, ensuring highly reliable results.
What accessories are included with the meter?
The package includes a translucent cap, pH 4 & 7 calibration solutions, pH storage solution, lanyard, and 2 AAA batteries.

Specifications

HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter Specifications
pH Range 0 – 14 pH
EC Range 0 – 9990 µS; 0 – 9.99 mS
TDS Range 0 – 8560 ppm (0.7 Scale); 0 – 5000 ppm (0.5 Scale)
Temperature Range 0-55 °C; 32-130°F
Resolution 0-99: 0.1 µS/ppm/ 0.01mS
100-999: 1 µS/ppm
1000-9990: 10 µS/ppm
Temperature resolution: 0.1 °C/F
Accuracy ±2%
EC to TDS Conversion Factor Non-linear conversions for KCl, 442TM, or NaCl solutions, selectable by the user
Probe Detachable platinum electrodes & pH glass sensor with reference tube electrodes
Housing IP-67 Waterproof (submersible; floats)
Power Source 2 x AAA batteries (included)
Dimensions 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches)
Weight 164g (5.8 oz)

What’s in the Box?

The HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter package includes:

  • HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter
  • Replaceable pH glass sensor & detachable platinum electrode
  • 2 x AAA batteries (pre-installed)
  • User manual with step-by-step setup, calibration, and maintenance instructions
  • pH 4 & pH 7 calibration solutions and pH storage solution
  • Protective cap and lanyard for added convenience

Warranty Policy

Please check out the manufacturers website for Warranty related issues.

$66.48

Original: $189.95

-65%
HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter—

$189.95

$66.48
Product image 1

Description

Is the HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter Right for You?

If you're looking for a professional-grade water quality testing meter, the HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter is an outstanding choice. Designed for a wide range of applications, including hydroponics, water treatment, scientific research, and pool maintenance, this meter delivers precise readings for pH, EC, TDS, salinity, and temperature. 

  • Features & Benefits
  • Product Specifications
  • What is included?
  • Warranty Policy

HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter

The HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter is an advanced, high-precision water quality tester designed for professional and home applications. Ideal for hydroponics, water purification, scientific research, and pool maintenance, this meter ensures accurate and reliable measurements with ease.

  • Measures pH, EC, TDS, salinity & temperature.
  • Five scales: µS, mS, ppm for versatility.
  • ATC with three coefficients for precision.
  • Waterproof IP67-rated for durability.

Why Choose the HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter?

The HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter is a high-precision instrument designed for accurate water quality analysis. It provides reliable measurements for pH, EC, TDS, salinity, and temperature, making it ideal for hydroponics, water treatment, scientific testing, and pool maintenance. 

Why HM Digital?

HM Digital is a trusted name in water quality testing, offering innovative and reliable solutions for growers, aquarium enthusiasts, and professionals. Designed for precision, its advanced meters provide accurate TDS and temperature readings, ensuring optimal water conditions. With user-friendly features like digital calibration and a durable, water-resistant design, HM Digital products help you maintain consistency and efficiency in your water monitoring routine.

Why Buy From Us?

At GreenThumbDepot, you're not just another sale to a faceless corporation. You're partnering with a team genuinely invested in your success. Our legendary customer service, combined with a promise of unbeatable prices, sets us apart. We're here for you, always.

Excellent 4.8 out of 5 based on 1,247 reviews
If I could rate 6 stars I would!
If I could rate 6 stars I would! My representative Edouard B. has been shockingly responsive! Like - oh my god - an actual SERVICE oriented company. He's dug into my odd connectivity issues I've been having - and following up in an AMAZINGLY timey manner. No shit. You'll be impressed! (And the price was also unbeatable, quick shipping...it's all PERFECT). Thank you Ed!!
Reviewer
Jim D
Customer service was outstanding great…
Customer service was outstanding great people to deal with they understand your needs and they will do their best to fulfill them there is no way I can complain about them because they are the best help out there.Thanks green thumb depot. I'll definitely order from them again
Reviewer
Glenn Appleton
The machine is doing just what my…
The machine is doing just what my salesman told it would do (I appreciate you Ed thank you) . The machine is what we need for our new business we're starting up, soon to be llc and licensed. We are getting a lot of clients wanting our services. Ed I will be needing more of your products, thank you again.
Reviewer
Freddie
Fantastic
Great prices, fantastic customer service, and mind blowing shipping! Incredible. Will be using again and telling anyone in need.
Reviewer
Kar
←
→

FAQ Section

What parameters does the HM Digital Waterproof Professional Series Meter measure?
This meter measures pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), salinity, and temperature.
How do I calibrate the HM Digital Waterproof Meter?
The meter features push-button digital calibration, allowing precise adjustments at any point within its range.
Does this meter have automatic temperature compensation (ATC)?
Yes, the device includes ATC with three selectable temperature coefficients for improved accuracy.
Is the meter waterproof?
Yes, it has an IP-67 waterproof rating, meaning it is fully submersible and floats on water.
What type of batteries does it use?
The meter operates on two AAA alkaline batteries, which are included in the package.
Does this meter have a replaceable sensor?
Yes, the device uses a replaceable sensor (model SP-C3), allowing extended use and cost-effective maintenance.
What is the accuracy of the readings?
The meter provides an accuracy of ±2% for TDS/EC readings and ±0.01 for pH measurements, ensuring highly reliable results.
What accessories are included with the meter?
The package includes a translucent cap, pH 4 & 7 calibration solutions, pH storage solution, lanyard, and 2 AAA batteries.

Specifications

HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter Specifications
pH Range 0 – 14 pH
EC Range 0 – 9990 µS; 0 – 9.99 mS
TDS Range 0 – 8560 ppm (0.7 Scale); 0 – 5000 ppm (0.5 Scale)
Temperature Range 0-55 °C; 32-130°F
Resolution 0-99: 0.1 µS/ppm/ 0.01mS
100-999: 1 µS/ppm
1000-9990: 10 µS/ppm
Temperature resolution: 0.1 °C/F
Accuracy ±2%
EC to TDS Conversion Factor Non-linear conversions for KCl, 442TM, or NaCl solutions, selectable by the user
Probe Detachable platinum electrodes & pH glass sensor with reference tube electrodes
Housing IP-67 Waterproof (submersible; floats)
Power Source 2 x AAA batteries (included)
Dimensions 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches)
Weight 164g (5.8 oz)

What’s in the Box?

The HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter package includes:

  • HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter
  • Replaceable pH glass sensor & detachable platinum electrode
  • 2 x AAA batteries (pre-installed)
  • User manual with step-by-step setup, calibration, and maintenance instructions
  • pH 4 & pH 7 calibration solutions and pH storage solution
  • Protective cap and lanyard for added convenience

Warranty Policy

Please check out the manufacturers website for Warranty related issues.

HM Digital Waterproof Professional Series pH/EC/TDS/Temp Meter | Green Thumb Depot