​2160 LaserFlow® Area Velocity Module ​

2100 Series modularity with advanced non-contacting laser Doppler technology

2160 LaserFlow ModuleThe 2160 LaserFlow Module uses non-contact Laser Doppler Velocity technology and non-contact Ultrasonic Level technology to remotely measure open-channel flow. The sensor has advanced technology to measure velocity with a laser beam at single or multiple points below the surface of the ​wastewater stream.

The LaserFlow is ideal for a broad range of wastewater monitoring applications.

During submerged conditions, flow measurement continues without interruption with optional Doppler Ultrasonic Area Velocity technology.

In field use, the 2160 is typically powered either by two alkaline, or Teledyne ISCO Rechargeable Lead-acid batteries, within a 2191 Battery Module. Other power options (including solar) are available.​


When you purchase instruments from Teledyne ISCO, you not only receive innovative, high quality products, you also receive excellent customer service and product support. Your initial purchase is only the beginning of Teledyne ISCO's ongoing commitment to their customers.


2100 Series Flow Modules BrochureBrochure
Flow Measuring Product GuideBrochure2110 Ultrasonic Flow Module; 2150 Area Velocity Module; 2160 LaserFlow™ Area Velocity Module; ​LaserFlow; LaserFlow Ex; Signature Flow Meter; DuraTracker Flow Meter
Water and Wastewater Product GuideBrochure2103Ci CDMA Cellular Modem Module; 2103Gl GSM/GPRS Cellular Modem Module; 2160 LaserFlow™ Area Velocity Module; ​LaserFlow; LaserFlow Ex; Signature Flow Meter; DuraTracker Flow Meter
LaserFlow Flow Accuracy Certificate-Alden LabCase Study2160 LaserFlow™ Area Velocity Module
Teledyne Isco 2160 LaserFlow ModuleDatasheet
2160 LaserFlow Module User ManualUser Manual
TIENet Barrier Installation GuideUser Manual 2160 LaserFlow™ Area Velocity Module; LaserFlow Ex; Signature Flow Meter; DuraTracker Flow Meter


​​​​​​​​​​​​​​​​​​​​​​​​​​​​2160 LaserFlow Module

Size (HxWxD): 2.9 x 11.3 x 7.5 in. (7.4 x 28.7 x 19.1 cm)
Weight: 2160 Module: 2.0 lbs (0.9 kg)
2160 Module with 2191 Battery Module: 6.0 lbs (2.7 kg)
Material: High-impact polystyrene, Stainless steel
Enclosure: IP 68 (self-certified)
Power: 7.0 to 16.6 VDC, Typical operating current 25 mA at 12 VDC Nominal, 1.0mA standby.
Typical Battery Life: 12 weeks at 15 minute data storage interval; 7 weeks at 5 minute data storage interval (2160 module, 2191 Battery Module with Eveready Energizer model 529 alkaline lantern batteries, and LaserFlow sensor)
Program Memory: Non-volatile, programmable flash; can be updated using PC without opening enclosure; retains user program after updating
Number of Modules: Up to 4, field interchangeable
Maximum Distance between Remote Modules: 3,300 ft (1,000 m)
Wiring between Modules: Twisted pair for communication, pair for power, gauge dependent on distance
Total Flow Calculations: Up to 2 independent level-to-area and/or level-to-flow rate conversions, net, positive or negative, based on either flow rate conversion
Level-to-Area Conversions: Round, U-shaped, rectangular, trapezoidal, elliptical, channel shapes with silt correction; data points up to 50 level-area pairs
Level-to-Flow Rate Conversions: Weirs- V-notch, rectangular, Cipolletti, Teledyne Isco Flow Metering Inserts, Thel-Mar; Flumes- Parshall, Palmer-Bowlus, Leopold-Lagco, trapezoidal, H, HS, HL; Manning Formula- Round, U-shaped, rectangular, trapezoidal; data points up to 50 level-flow rate points; equation- two-term polynomial
Data Storage Memory: Non-volatile flash; retains stored data during program updates
Data Storage Capacity: 798,000 bytes (up to 158,000 readings, equal to over 270 days of level, velocity, flow rate, ultrasonic signal, Doppler frequency, and input voltage readings at 15 minute intervals).
Data Types: Flow Rate, Flow Rate 2, Total Flow, Input Voltage; LaserFlow Level, Distance, Velocity; Optional 350 AV Level, Temperature, Velocity
Storage Mode: Rollover with variable rate data storage
Storage Interval: 15 or 30 seconds; 1, 2, 5, 15, or 30 minutes; or 1, 2, 4, 12, or 24 hours
Bytes per reading: 5
Setup and Data Retrieval: Serial connection to IBM PC or compatible computer with Teledyne Isco Flowlink software
Baud Rate: 38,400
Operating and Storage Temperature range: -40° to 140 °F (-40° to 60 °C)

​For a full list of product specifications, see the datasheet.



Standard Features

  • Rugged, submersible enclosure fulfills IP68 enclosure requirements.
  • The quick-connect sensor can be easily removed and interchanged in the field without requiring recalibration.
  • Up to four 2100 Series flow modules can be networked by stacking and/or extension cables.
  • Modbus output interface


  • Portable or permanent flow measurement for CSO, SSO, I&I, SSEs, CMOM, and other sewer monitoring programs
  • Shallow flow measurement in large and small pipes.
  • Wastewater treatment plant influent, process, and effluent flow measurement.
  • Stormwater conveyance and outfall (sunshade required)
  • Irrigation canals and channels (sunshade required)

Options and Accessories

  • Landline and cell phone communication options
  • TIENet™ 350 Area velocity sensor configured for submerged flow or redundant in-stream measurement
  • Sensor mounting kits and street-level retrieval tools