--- product_id: 257063446 title: "DM-2 Commercial In-Line Dual TDS Monitor Meter Testing For Hydroponics Gardening Aquariums Reefs Pools Spas Water Treatment Drinking Pure Filter system" brand: "hm digital" price: "ā‚¬ 79.69" currency: EUR in_stock: true category: "Hm Digital" url: https://www.desertcart.hr/products/257063446-dm-2-commercial-in-line-dual-tds-monitor-meter-testing store_origin: HR region: Croatia --- # Water-resistant casing & cables Dual in-line TDS monitoring Advanced microprocessor tech DM-2 Commercial In-Line Dual TDS Monitor Meter Testing For Hydroponics Gardening Aquariums Reefs Pools Spas Water Treatment Drinking Pure Filter system **Brand:** hm digital **Price:** ā‚¬ 79.69 **Availability:** āœ… In Stock ## Summary > šŸ’§ Stay ahead of the flow with precision water monitoring! ## Quick Answers - **What is this?** DM-2 Commercial In-Line Dual TDS Monitor Meter Testing For Hydroponics Gardening Aquariums Reefs Pools Spas Water Treatment Drinking Pure Filter system by hm digital - **How much does it cost?** ā‚¬ 79.69 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/257063446-dm-2-commercial-in-line-dual-tds-monitor-meter-testing) ## 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 - ā€¢ **Crystal Clear Readings:** Extra-large LCD display with 170Ā° viewing angle and 1920x1080 resolution for effortless monitoring at a glance. - ā€¢ **Energy Smart & Durable:** Low 3W power consumption with auto-off function extends device life and reduces operational costs. - ā€¢ **Plug & Play Efficiency:** Quick-connect T-fittings and variable mounting bracket make installation seamless and adaptable to any setup. - ā€¢ **Precision You Can Trust:** Dual electrode probes deliver real-time TDS levels for both feed and product water, ensuring flawless water quality control. - ā€¢ **Built for Industrial Powerhouses:** Designed for demanding environments like car washes, food processing, and hydroponics with rugged, water-resistant construction. ## Overview The HM DIGITAL DM-2 is a commercial-grade, in-line dual TDS monitor featuring advanced microprocessor technology for highly accurate total dissolved solids measurement. Engineered for industrial applications such as hydroponics, aquariums, and water treatment, it offers a large, clear LCD display, water-resistant design, and easy installation with quick-connect fittings. This efficient, durable device ensures optimal water quality control with minimal power consumption. ## Description Commercial In-Line Dual TDS Monitor DM-2 with Advanced Microprocessors. Commercial In-Line Dual TDS Monitor DM-2 with Advanced Microprocessors. ## Features - The Dm-2 Tds Meter Installs On Industrial Systems Such As Car Washes, Window Washing, Manufacturing, And Food Processing - The Commercial In-Line Dual Monitor Is Highly Efficient And Accurate Due To Its Advanced Microprocessor Technology - This Dual Monitor Displays Total Dissolved Solids Levels Of The Feed Water And Product Water With In And Out Electrode Probes - Brand Name: Hm Digital ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000VVYRVQ | | Additional Features | Industrial Applications, Advanced Microprocessor Technology, Auto-Off Function, Water-Resistant Casing, Extra Large LCD Display, Longer Waterproof Shielded Cables, Variable Mounting Bracket, Quick-Connect T-Fittings | | Aspect Ratio | 16:9 | | Brand | HM Digital | | Brightness | Appropriate for clear visibility | | Color | White | | Compatible Devices | DM2, DM-2, DM-2-2550, HMDM-2 | | Connectivity Technology | HDMI, DisplayPort, DVI, VGA, USB | | Contrast Ratio | 2000:1 | | Customer Reviews | 4.3 4.3 out of 5 stars (108) | | Display Resolution Maximum | 1920 x 1080 | | Display Technology | LCD | | Display Type | LCD | | Global Trade Identification Number | 00826333000100 | | Hardware Connectivity | Unknown | | Has Color Screen | No | | Item Weight | 0.5 Pounds | | Manufacturer | HM Digital | | Model Name | DM-2 | | Model Number | DM-2 | | Mounting Type | VESA No | | Native Resolution | 1920x1080 | | Power Consumption | 3 Watts | | Refresh Rate | 60 Hz | | Resolution | FHD 1080p | | Screen Finish | Glossy | | Screen Size | 3.1 Inches | | Series Number | 1 | | Shape | Rectangular | | Specific Uses For Product | Commercial | | UPC | 886566017467 826333000100 797267347473 886566120525 799705707115 603964473547 609132242342 701003119576 | | Unit Count | 1.0 Count | | Viewing Angle | 170 Degrees | ## Product Details - **Aspect ratio:** 16:9 - **Brand:** HM Digital - **Resolution:** FHD 1080p - **Screen size:** 3.1 Inches - **Screen surface description:** Glossy ## Images ![DM-2 Commercial In-Line Dual TDS Monitor Meter Testing For Hydroponics Gardening Aquariums Reefs Pools Spas Water Treatment Drinking Pure Filter system - Image 1](https://m.media-amazon.com/images/I/71p9etz0vAL.jpg) ## Questions & Answers **Q: Why does the description not show the size lines for in and out this unit will fit?** A: Fittings Size (1/4" TEE fittings)In case you need a bigger size fitting 3/8" for example we carry it ,you can search the following item B00TG08TQM H2o4u **Q: What t fittings do I need to put this inline of my 3/4ā€ pex? Iā€™m assuming a few different fittings.** A: I am sort of going from memory, but I bought the white, I think teflon, fittings that are readily available at big box stores like Home Depot and Lowes. I believe the fitting provided is 1/4" so you need a pex fitting that fits the size of you pex pipe, but the "T" piece needs a 1/4" to take the one provided. I don't remember any particular difficulties, but in fact I was attaching to 3/8 white plastic tubing, so I needed a different "T" piece from the one you require. Its all a matter of finding the right "T" piece. I took a quick look, and the pex fittings are all compression fittings, so you might have to put a plastic loop with a t piece in the middle to take this device. Lots of ways to skin a cat. **Q: How long are the cables? And is it for 1/4" ID RO line? Your missing the basics in the description** A: On the unit I purchased, the cables are approximately 45" long. It includes two "T" fittings for 1/4" RO/DI lines. **Q: is this available with 1/2'' x 1/2'' x 1/4'' tee fitting? i need the probes to go to 1/2'' tubing** A: You can purchase 1/2 x 1/2 x 1/4 push-in fitting tees to replace the ones that come with it. I'm doing the same thing with a DI system for my detailing business. ## Frequently Bought Together - Commercial In-Line Dual TDS Monitor - HM Digital TDS-3 Handheld TDS Meter With Carrying Case, 0 - 9990 ppm TDS Measurement Range, 1 ppm Resolution, +/- 2% Readout Accuracy - HM Digital C342 TDS and EC Calibration Solution, 342 ppm (NaCl), 90 ml Volume, Transparent/Blue --- ## Why Shop on Desertcart? - šŸ›’ **Trusted by 1.3+ Million Shoppers** ā€” Serving international shoppers since 2016 - šŸŒ **Shop Globally** ā€” Access 737+ million products across 21 categories - šŸ’° **No Hidden Fees** ā€” All customs, duties, and taxes included in the price - šŸ”„ **15-Day Free Returns** ā€” Hassle-free returns (30 days for PRO members) - šŸ”’ **Secure Payments** ā€” Trusted payment options with buyer protection - ā­ **TrustPilot Rated 4.5/5** ā€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/257063446-dm-2-commercial-in-line-dual-tds-monitor-meter-testing](https://www.desertcart.hr/products/257063446-dm-2-commercial-in-line-dual-tds-monitor-meter-testing) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-08*