Inline TDS meter HM SM-1
- Measures the tap or any other water source such as water coming out of your purification system for TDS.
Single TDS Meter Monitor HM Digital SM-1
Inline TDS Meter measures the tap or any other water source such as water coming out of your purification system for TDS, Total Dissolved Solids. Ideal for testing the effectiveness of Reverse Osmosis systems. Measures Total Dissolved Solids (TDS) in water.
The HM Digital SM-1 TDS Monitor provides an easy to read single line TDS monitor that provides a digital readout. It is ideal for any water filtration system, including reverse osmosis systems, watermakers, DI filter coolers and much more.
Inline TDS Monitor SM-1 Features:
- Range: 0-9990 ppm: (0 – 999 ppm the resolution is 1 ppm. From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by a blinking ‘x10’ image.)
- Accuracy: ±2%
- Conversion Factor: NaCl (avg. 0.5)
- Cable Length: 22″ (including sensor)
- Fittings: 1/4″ T-fitting (standard), also available with 3/8″ or 1/2″ (optional).
- Power source: 2 x 1.5V button cell batteries (LR44 or equivalent; included)
- Battery life: approx. 1000 hours of continuous use
- Size: 7.6 x 2 x 4.7 cm (3 x .8 x 1.9 in.)
- Weight: 79.4 g (2.8 oz.)
Product Description:
- Displays TDS level of a single water line
- Efficient and accurate
- Auto-Off function conserves battery power. (Shuts off automatically after 10 minutes of non-use)
- Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.
- Comes equipped with one 1/4 inch T-fitting (also available with 3/8″ or 1/2″).
- Installs quickly and easily.
Made In Korea by HM Digital.
Quality Water Salinity Meter.
FREE deliver Australia wide.
Contact us for more info, wholesale pricing. info@waterfilter.net.au
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Estimated Delivery:Jul 15 - Jul 19
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Next Day Dispatch

Inline TDS meter HM SM-1
- Measures the tap or any other water source such as water coming out of your purification system for TDS.
Single TDS Meter Monitor HM Digital SM-1
Inline TDS Meter measures the tap or any other water source such as water coming out of your purification system for TDS, Total Dissolved Solids. Ideal for testing the effectiveness of Reverse Osmosis systems. Measures Total Dissolved Solids (TDS) in water.
The HM Digital SM-1 TDS Monitor provides an easy to read single line TDS monitor that provides a digital readout. It is ideal for any water filtration system, including reverse osmosis systems, watermakers, DI filter coolers and much more.
Inline TDS Monitor SM-1 Features:
- Range: 0-9990 ppm: (0 – 999 ppm the resolution is 1 ppm. From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by a blinking ‘x10’ image.)
- Accuracy: ±2%
- Conversion Factor: NaCl (avg. 0.5)
- Cable Length: 22″ (including sensor)
- Fittings: 1/4″ T-fitting (standard), also available with 3/8″ or 1/2″ (optional).
- Power source: 2 x 1.5V button cell batteries (LR44 or equivalent; included)
- Battery life: approx. 1000 hours of continuous use
- Size: 7.6 x 2 x 4.7 cm (3 x .8 x 1.9 in.)
- Weight: 79.4 g (2.8 oz.)
Product Description:
- Displays TDS level of a single water line
- Efficient and accurate
- Auto-Off function conserves battery power. (Shuts off automatically after 10 minutes of non-use)
- Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.
- Comes equipped with one 1/4 inch T-fitting (also available with 3/8″ or 1/2″).
- Installs quickly and easily.
Made In Korea by HM Digital.
Quality Water Salinity Meter.
FREE deliver Australia wide.
Contact us for more info, wholesale pricing. info@waterfilter.net.au
Discover more in our FAQ
What types of industrial water treatment products do you offer?
We offer a comprehensive range of industrial water treatment solutions, including:
Filtration Systems – Effectively removes sediment, chlorine, and other impurities to enhance water purity and system longevity.
Reverse Osmosis Membranes – High-performance purification technology that eliminates dissolved solids, contaminants, and impurities for ultra-pure water.
Membrane Housings – Durable, high-pressure enclosures engineered to protect and optimize the performance of RO membranes.
Filter Cartridges – Precision-engineered sediment, carbon, and specialty filters designed to target specific contaminants for enhanced water treatment efficiency.
Chemical Dosing Systems – Precise chemical treatment for water.
Media FRP Pressure Vessels – High-pressure tanks for filtration media.
Ion Exchange Resins – Softening and demineralization solutions.
Water Instruments – pH meters, conductivity meters, and TDS testers.
Rotameter Flow Meters – Accurate flow measurement devices.
Watermaker Parts – Spare parts for marine and industrial watermakers.
Water Quality Test Kits – Portable and lab testing solutions.
How do I know which product is right for my application?
Choosing the right product depends on:
Water quality parameters (TDS, pH, hardness, contaminants)
Flow rate and pressure requirements
Industry-specific needs (food processing, pharmaceuticals, HVAC, etc.)
If you’re unsure, our technical support team can help you select the best solution.
Do you offer bulk pricing for large industrial orders?
Yes! We provide bulk discounts and custom pricing for high-volume orders. Contact us for a personalized quote.
How long does shipping take?
Shipping times depend on location and stock availability. Standard delivery is 3–7 business days for most regions. Expedited shipping options are available upon request.
What is your return policy?
We offer a 14-day return policy from the date of delivery. If you are not completely satisfied with your purchase, you can return the item for a refund or exchange, provided it meets our return conditions.
What happens if I receive a damaged or incorrect item?
If your item arrives damaged or you receive the wrong product, please contact us immediately at support@waterfilter.net.au with photos and your order number. We will send a replacement or issue a refund as per our return policy..
How long does shipping take?
Shipping times depend on location and stock availability. Standard delivery is 3–7 business days for most regions.
Expedited shipping options are available upon request.
Do you ship internationally?
Yes, we offer international shipping for most of our industrial water treatment products. Contact us for custom shipping quotes and lead times.