Flow Meters and Data Loggers

Accurate Flow Measurement for Compliance and System Performance

Flow monitoring is at the core of every effective water and wastewater management program. Reliable flow data ensures compliance with discharge permits, supports process optimization, and provides critical insights into hydraulic performance. From open channels and industrial discharge points to stormwater systems, TDMA offers industry-leading Teledyne ISCO flow meters and sensors that deliver precision, durability, and full system integration.

Our solutions range from permanently installed flow monitoring stations to portable, battery-powered loggers designed to provide accurate, defensible data for regulatory and operational needs.


ISCO Signature® Flow Meter

The ISCO Signature® Flow Meter sets the benchmark for advanced, multi-parameter flow measurement. It combines multiple sensor inputs, including area velocity, ultrasonic, bubbler, and laser technologies, to deliver accurate flow data across diverse site conditions.

ISCO Signature Flow Meter
  • Modular, expandable platform for multiple sensor types
  • Real-time data logging with Ethernet, USB, and wireless connectivity options
  • Built-in reporting and control for compliance documentation
  • Ideal for permanent installations, compliance monitoring, and process control

ISCO DuraTracker® Flow Logger

The DuraTracker® Flow Logger provides robust, long-term flow data collection in harsh environments. Designed for both temporary and permanent installations, it seamlessly integrates with ISCO sensors to capture and store continuous flow, level, and water quality data.

  • Compact, weather-resistant enclosure for field deployment
  • Battery or external power options for flexible use
  • Supports multiple input channels for flow, pH, temperature, and rainfall data
  • Communicates via cellular, Ethernet, or local retrieval
  • Perfect for stormwater, industrial pretreatment, and collection system monitoring
ISCO DuraTracker Flow Meter

ISCO 804 EM Insertion Electromagnetic Flow Meter

ISCO 804 EM Flow Meter

The ISCO 804 EM is an insertion-style electromagnetic flow meter engineered for full-pipe flow measurement in industrial and municipal applications. It provides high-accuracy readings without requiring major pipeline modifications, making it ideal for retrofit or temporary monitoring projects.

  • Designed for pressurized pipe systems — no need for external level sensors
  • Provides accurate, repeatable velocity and flow measurements even in variable flow conditions
  • Simple hot-tap installation allows setup without shutting down the line
  • Integrates with ISCO Signature® and DuraTracker® flow meters for data logging and remote monitoring
  • Perfect for industrial process water, effluent discharge lines, and municipal infrastructure

TIENet® 350 Ex Area Velocity Sensor

The TIENet® 350 Ex Area Velocity Sensor delivers accurate flow measurement in open channels and partially filled pipes by combining velocity and level data. It’s engineered for use in hazardous or explosive environments (ATEX-certified) where safety and precision are paramount.

  • Measures velocity and level simultaneously for precise flow calculation
  • Designed for submerged conditions with corrosion-resistant materials
  • Intrinsically safe for hazardous areas (ATEX and FM-approved)
  • Easily interfaces with the Signature and DuraTracker flow meters
  • Ideal for wastewater collection systems, industrial discharges, and stormwater applications
ISCO TIENet 350 AV

ISCO 701 pH and Temperature Module

The ISCO 701 pH and Temperature Module provides precise, continuous measurement of pH and temperature for industrial and municipal monitoring applications. Designed to work seamlessly with ISCO Signature® and DuraTracker® flow systems, it allows users to collect synchronized flow and water quality data in one unified platform.

ISCO 701 pH and Temperature Probe
  • Measures pH and temperature directly in the wastewater or process stream
  • Provides continuous monitoring to detect pH excursions and verify neutralization system performance
  • Features a field-serviceable probe assembly for harsh environments
  • Ideal for industrial pretreatment, compliance monitoring, and process optimization

ISCO LaserFlow® Velocity Sensor

The ISCO LaserFlow® is an advanced, non-contact area velocity sensor that measures flow using laser Doppler velocity profiling. It’s ideal for open channels and partially filled pipes where non-intrusive, maintenance-free operation is required.

  • Non-contact measurement eliminates fouling and sensor wear
  • Measures velocity below the liquid surface for unmatched accuracy
  • Compatible with ISCO Signature® and DuraTracker® systems
  • Ideal for sanitary sewers, storm drains, and industrial effluent monitoring
  • Reduces maintenance downtime and improves data reliability
ISCO LaserFlow

Integrated Flow Monitoring Systems

All ISCO flow meters and sensors offered by TDMA can be combined into complete flow monitoring and logging systems. Using the TIENet® communication platform, flow, pH, temperature, and rainfall data can be captured, logged, and transmitted for compliance reporting or operational analysis.

TDMA provides complete system integration services — from installation and calibration to data management and preventive maintenance. We ensure that your monitoring equipment remains accurate, reliable, and audit-ready.