​Standard Features

  • Quick-change bottle cartridge system

  • Exclusive LD90 Liquid Presence Detector and pump revolution counting system ensure accurate, repeatable sample volumes.

  • Basic and extended programming modes for:

    • Uniform time intervals

    • Non-uniform time intervals

    • Stormwater runoff sampling

    • Multiple bottle compositing

    • Split sampling

  • Thick foam insulation (R-11) and 16-lb. ice capacity to preserve samples.

  • 3700 Controller is housed in a NEMA 4X and 6 (IP67) environmentally sealed enclosure, and is fully interchangeable between portable and refrigerated samplers. 

  • Mcerts Certified​


  • Wastewater effluent

  • Stormwater monitoring

  • CSO monitoring

  • Permit compliance

  • Pretreatment compliance 

Options and Accessories

  • Sequential sampling bottle configuration - 24 x 500 ml wedge-shaped polyethylene

  • Composite sampling bottle configurations - 1 x 2.5 gal (9450 ml) polyethylene or glass; 1 x 2.0 gal (7500 ml) ProPak® single-use bag

  • Suction lines and strainers​


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


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.