---
product_id: 30178917
title: "HM Digital SM-1 1-Stage Inline TDS Monitor For Single Water Line"
brand: "hm digital"
price: "KD 12.59"
currency: KWD
in_stock: true
url: https://www.desertcart.com.kw/products/30178917-hm-digital-sm-1-1-stage-inline-tds-monitor-single
store_origin: KW
region: Kuwait
---

# Real-time TDS measurement Compact design Filter change alerts HM Digital SM-1 1-Stage Inline TDS Monitor For Single Water Line

**Brand:** hm digital
**Price:** KD 12.59
**Availability:** ✅ In Stock

## Summary

> 💡 Stay hydrated, stay informed!

## Quick Answers

- **What is this?** HM Digital SM-1 1-Stage Inline TDS Monitor For Single Water Line by hm digital
- **How much does it cost?** KD 12.59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/30178917-hm-digital-sm-1-1-stage-inline-tds-monitor-single)

## Best For

- hm digital enthusiasts

## Why This Product

- Trusted hm digital brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **User-Friendly Design:** No batteries required, making it hassle-free and eco-friendly.
- • **Lightweight & Portable:** Weighing only 2.82 ounces, it's easy to install and relocate.
- • **Smart Filter Management:** Receive timely alerts for filter changes to maintain optimal performance.
- • **Versatile Compatibility:** Perfect for any water filtration system, including reverse osmosis and coolers.
- • **Stay Ahead of Contaminants:** Monitor your water quality in real-time to ensure purity.

## Overview

The HM Digital SM-1 1-Stage Inline TDS Monitor is a compact and efficient device designed to measure total dissolved solids in your water. Ideal for various filtration systems, it helps you maintain water quality by alerting you when it's time to change filters, ensuring you always have clean and safe drinking water.

## Description

HM Digital SM-1 1-Stage Inline TDS Monitor For Single Water Line

## Features

- Measure the product water at any time.
- Use the monitor to determine when the filters need to be changed.
- Ideal for any water filtration system, including reverse osmosis systems, coolers and much more.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | HM Digital |
| Part Number | 343433 |
| Item Weight | 2.82 ounces |
| Package Dimensions | 6.61 x 4.53 x 0.75 inches |
| Item model number | SM-1 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |
| Battery Cell Type | Alkaline |

## Product Details

- **Package Information:** Cartridge
- **Installation Type:** Under Sink
- **Purification Method:** Reverse Osmosis
- **Power Source:** Battery Powered
- **Model Name:** SM-1
- **Manufacturer:** HM Digital

## Images

![HM Digital SM-1 1-Stage Inline TDS Monitor For Single Water Line - Image 1](https://m.media-amazon.com/images/I/41soFBslGcL.jpg)

## Questions & Answers

**Q: Can I just dip the probe in water or does it have to be use with tubing?**
A: You can use this in either way.

**Q: what's the accuracy of the measurement?**
A: Hi Rick A. I expect to receive the item this upcoming Sunday, once I install it,I will give you feedback, I have purchased several items from HM, such as a inline tds and am finding good results as far as accuracy with in 10 tds from the hand held meter.

**Q: can this be used on a 1" copper water main and if so, if I was to insert a 1" copper T, how close does the sensor need to be to the water flow?**
A: Hi, if you are talking about the HM gallons meter, it could be installed with a 1" tee if you can also add a 1/4 fitting either push in type, or a threaded reduced fitting to recieve a push in pvc 1/4 npt. You can also forget the tee and use a pierce fitting on the line that is commonly used to get water to a evaporated cooler. The line should go to the in only feeding the Ro system so your not measuring all of the water being used for everything else. I hope this helps and makes sense.

**Q: What is the size of the display?**
A: It's small... approx. 10mm x 20mm, but it's very easy to read.

## Frequently Bought Together

- HM Digital SM-1 1-Stage Inline TDS Monitor For Single Water Line
- AquaticLife Float Valve Kit for RO & RO/DI Systems
- HM Digital DM-1 In-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy,Blue & White

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.kw/products/30178917-hm-digital-sm-1-1-stage-inline-tds-monitor-single](https://www.desertcart.com.kw/products/30178917-hm-digital-sm-1-1-stage-inline-tds-monitor-single)

---

*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-02-08*