RFQ

DM-3: Commercial In-Line Dual EC/TDS Monitor

  • NG # 04256-HW-HM-015

The HM Digital DM‑3 is a commercial‑grade inline Dual EC/TDS monitor designed to continuously measure and display total dissolved solids (TDS) and electrical conductivity (EC) levels of both feed (input) and product (output) water in water filtration systems. It features a large backlit display, digital calibration, dual sensors, shielded cables, and robust diagnostics for reliable performance in professional applications such as reverse osmosis, deionized water systems, aquariums, hydroponics, and potable water treatment.

Manufactured By :
HM Digital
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Call +88 01714243446

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Overview

The HM Digital DM‑3 is engineered for precise water quality monitoring in commercial and industrial environments. It continuously measures the EC and TDS of incoming and outgoing water in filtration systems, providing real‑time data that helps ensure optimal performance and water purity. Equipped with advanced microprocessor technology and dual electrode probes, this monitor offers accurate and dependable readings. The large backlit LCD screen makes measurements easy to read in low‑light conditions, while diagnostic error messaging helps identify potential issues quickly. Factory‑calibrated with digital calibration and protected by shielded sensor cables, the DM‑3 combines durability with straightforward usability, making it suitable for a wide range of applications including reverse osmosis (RO), deionized (DI) water systems, hydroponics, aquariums, and general water treatment.

Specification

  • Measurement Range: EC 0–9999 µS/0–9.99 mS, TDS 0–5000 ppm/0–5 ppt
  • Resolution: EC 0.1 µS (0–99.9), 1 µS (100–999), 10 µS (1000–9990), 0.01 mS (0.00–9.99); TDS 0.1 ppm (0–99.9), 1 ppm (100–999), 10 ppm (1000–5000), 0.01 ppt (0.00–5.00)
  • Accuracy: ±2 %
  • Conversion Factor: NaCl (average 0.5)
  • Cable Length: 1.2 m (3.9 ft), shielded sensor cables
  • Sensor Type: Dual 1/4″ diameter quick‑connect electrode probes (model SP‑3 included)
  • Digital Calibration: Factory calibrated to 342 ppm NaCl with separate recalibration capability for each line
  • Power Source: 2 × AA batteries (included)
  • Display: Extra‑large backlit LCD screen
  • Size: 11.6 × 1.9 × 7.0 cm (4.6 × 0.7 × 2.8 in)
  • Weight: 225 g (7.9 oz)
  • Enhanced Features: Digital diagnostics and error messaging, robust water‑resistant casing, variable mounting bracket

Other HM Digital Products

PSC-150: Extended Range EC/TDS Controller
HM Digital Industrial Tools & Accessories 04248-HW-HM-007

Dual TDS Sensor Probes (for DM-1)
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Single TDS Sensor Probe
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LBS-10: Leak Block Sensor
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PSC-60D: Dual Display, Dual Line EC/TDS Monitor
HM Digital Industrial Tools & Accessories 04254-HW-HM-013

PSC-154: TDS/EC Controller with 4-4mA Output
HM Digital Industrial Tools & Accessories 04247-HW-HM-006

PSC-64D: Dual Display, Dual Line EC/TDS Monitor w/ 4-20mA Output
HM Digital Industrial Tools & Accessories 04255-HW-HM-014

PSC-54: Single Line, EC/TDS Mini Controller with 4-20mA Output
HM Digital Industrial Tools & Accessories 04249-HW-HM-008

DM-2EC: Commercial In-Line Dual EC Monitor
HM Digital Industrial Tools & Accessories 04258-HW-HM-017

CIC150-N/ CIC-150-4: Single Control Dosing/Injection TDS/EC
HM Digital Industrial Tools & Accessories 04251-HW-HM-010

PSC-50: TDS/EC Controller
HM Digital Industrial Tools & Accessories 04250-HW-HM-009

In-line Single EC Monitor
HM Digital Industrial Tools & Accessories 04261-HW-HM-020

DM-2: Commercial In-Line Dual TDS Monitor
HM Digital Industrial Tools & Accessories 04257-HW-HM-016

Dual TDS Sensor Probes (for DM-2)
HM Digital Industrial Tools & Accessories 04244-HW-HM-003

DM-1: Commercial In-Line Dual TDS Monitor
HM Digital Industrial Tools & Accessories 04259-HW-HM-018

TDS/EC Sensor Probe for Panel Mounted Controllers
HM Digital Industrial Tools & Accessories 04243-HW-HM-002

PPH-1000: Single Line pH and Temp Controller
HM Digital Industrial Tools & Accessories 04252-HW-HM-011

PS-203: Dual Display TDS Controller
HM Digital Industrial Tools & Accessories 04253-HW-HM-012

In-line Single TDS Monitor
HM Digital Industrial Tools & Accessories 04260-HW-HM-019

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