​BLZZRD​ Portable Refrigerated Wastewater Sampler

AC or DC Battery Powered Cooling with State-of-the-Art Data Logging​​


​​​BLZZRD is a portable refrigerated sampler with active cooling from either AC or battery power. Its controller offers all advanced controls, interfaces, data logging, and remote communication features. Based on Teledyne ISCO’s industry-leading 6712 controller, you get all the advanced control, data logging, and communication features of the 6712, with cooling from either AC or battery power. Bottle​ options include 5- and 2.5 gallon composites as well as 4 x 1-gallon, 4 x 1.8 L, and 14 x 950 ml sequentials. A 12V deep-cycle battery delivers 48 hours—or more—of refrigeration. The power-saving cooling system remains on standby until the first sample is drawn, and only then switches on to preserve the collected samples for pickup. Available routines include: pause-and-resume for intermittentdischarge flow monitoring; sampler pacing by time, non-uniform time, flow or external event; and random interval sample collection.​



Sampler Selection GuideBrochure
Sampler Source BookBrochure
BLZZRD Sampler Data SheetDatasheet
Pressurize Line Accessory, 6712, Avalanche-BLZZRD, 5800 Data sheetDatasheet
Isco Stormwater Monitoring GuideOther
BLZZRD-Operation-ManualUser Manual


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.


​​​​​​​​​​​​​​​​Avalanche Multi-bottle, Multi-function Sampler

Size (HxWxL): 28 x 18.5 x 31.5 inches (71 x 47 x 80 cm)
Weight: Dry, less battery - 74 lbs (34 kg)
Power Requirements: 12 VDC, 6 Amps (supplied by external battery), OR 90 to 264 VAC, 47 to 63 Hz, 2 Amps
Bottle Configurations: 5-gallon poly bottle
2.5-gallon glass bottle configuration
2.5-gallon poly bottle configuration
1.8 L glass bottle configuration (4 bottles)
1-gallon poly bottle configuration (4 bottles)
950-mL poly bottle configuration (14 bottles)


Intake suction tubing: 3 to 99 ft (1 to 30 m); Material: Vinyl or Teflon; Inside dimension: 3/8 in (1 cm)

Pump tubing life:
Typically 1,000,000 pump counts
Typical repeatability: ±5 ml or ±5% of the average volume in a set
Maximum lift: 28 ft. (8.5 m)
Typical line velocity @ Head height: 3.0 ft./s @ 3 ft; 2.9 ft./s @ 10 ft; 2.7 ft./s @ 15 ft. (0.91 m/s @ 0.9 m; 0.87 m/s @ 3.1 m; 0.83 m/s @ 4.6 m)
Liquid presence detector: Non-wetted, non-conductive sensor detects when liquid sample reaches the pump to automatically compensate for changes in head heights.


Weight: 13 lbs. (5.9 kg)
Size: 10 x 12.5 x 10 inches (26 x 32.x 25 cm)
Operational temperature: 32° to 120°F (0° to 49°C)
Enclosure rating: NEMA 4X, 6 (IP67)
Program memory: Non-volatile ROM
Flow meter signal input: 5 to 15 volt DC pulse or 25 millisecond isolated contact closure
External trigger: Initiates sample collection and cooling from contact closure signal
Number of programmable composite samples: 1 to 999 samples
Clock Accuracy: 1 minute per month, typical, for real time clock​

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



Standard Features

  • Standard and extended programming keeps setup simple when you don't need advanced features.
  • NEMA 4x, 6 (IP67) controller enclosure is watertight and dustproof.
  • SDI-12 interface provides “plug and play” connection with multi-parameter water-quality sondes and other compatible devices.
  • Standard 512kB memory gives you great flexibility for logging environmental data.
  • NEMA 4X, 6 (IP67) controller enclosure
  • Sample delivery at the EPA-recommended velocity of 2 ft/sec., even at head heights of 26 feet.
  • Patented pump revolution counter ensures accurate sample volumes - and tells you when tubing should be replaced.


  • Stormwater Runoff Compliance
  • TMDL and Watershed monitoring
  • Enforcement Monitoring
  • Anywhere you need advan​ced sampling capability combined with data logging and communications for flow, rainfall, and water quality parameters – plus reliable, on-demand cooling.

Options and Accessories

  • Composite sampling bottle configurations
    • 5-gallon poly bottle
    • 2.5-gallon glass bottle
    • 2.5-gallon poly bottle
  • Sequential sampling bottle configurations
    • 1.8 L glass bottles (4 bottles)
    • 1-gallon poly bottles (4 bottles)
    • 950 ml poly bottles (14 bottles)
  • Suction lines and strainers
  • Solar panels for remote inst​allations
  • 674 Rain Gauge
  • 700 Series Modules for flow and parameter measurement
  • Telephone modem for alarm dial out features
  • Cell phone-based data retrieval and dial-out alarm
  • Wireless radio data retrieval with 2102 module
  • 581 RTD data retrieval device
  • Flowlink® Software
  • Optional temperature sensor - provides precise log of sample compartment temperature for automatic documentation​​