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Refrigerated Water Samplers

We offer refrigerated water samplers—available for purchase or rent across California, Nevada, and Hawaii—delivering precise, temperature-controlled sample preservation with Teledyne ISCO’s renowned reliability.

Give us a call at: (916) 341-9002

Advantages of Our Refrigerated Units

Reliable temperature control—maintains ≤ 4 °C even in hot conditions
Silent, energy-efficient compressor cooling
Rugged, weather-resistant construction
Easy programming via intuitive interface
Compatible with battery, AC, and solar power setups

How They Work

These units use a built-in compressor and insulated chamber to chill samples immediately upon collection, preserving sample integrity and meeting regulatory temperature requirements.

Refrigerated Models Available

We offer a range of refrigerated samplers, including the 5800, 6712FR, and BLZZRD, designed to preserve sample integrity in demanding environments. These models provide reliable temperature control for long-term or high-precision sampling projects.

ISCO 5800 Series Refrigerated Water Sampler

ISCO 5800 Sampler

Engineered for durability and precision, the ISCO 5800 is a refrigerated, stationary sampler built for continuous, high-volume monitoring.

Robust construction – Weather-resistant, corrosion-proof enclosure stands up to harsh environments
Precise refrigeration – Maintains samples at or below 4 °C for regulatory compliance and lab-ready preservation
Flexible programming – Intuitive keypad and display allow easy setup of composite or discrete sampling routines
Accurate collection – LD90 liquid sensor and pump flow tracking deliver consistent, repeatable volumes
High-capacity options – Supports multiple bottle configurations, from 24 × 1 L to 1 × 5 gal, for extended deployments

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ISCO 6700FR Series Refrigerated Water Sampler

ISCO 6712FR Sampler

Built for precision and preservation, the ISCO 6712FR stationary water sampler pairs the trusted 6712 controller with a fully insulated refrigeration system for temperature-controlled sampling.

Durable design – Weather-resistant enclosure stands up to demanding field or plant conditions
Temperature stability – Maintains samples at or below 4 °C to meet regulatory requirements
User-friendly control – 6712 controller offers intuitive programming and flexible sampling routines
Accurate collection – LD90 liquid sensor and pump flow tracking ensure consistent, repeatable volumes
Flexible bottle configurations – Supports multiple bottle sizes and arrangements to suit varied monitoring needs

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ISCO BLZZRD

The ISCO BLZZRD is a portable, refrigerated automatic water sampler designed for reliable sample preservation in the field. Its high-efficiency compressor system keeps collected samples at or below 4 °C, even in high ambient temperatures, meeting EPA preservation requirements. Built with a rugged, weather-resistant enclosure, the BLZZRD is ideal for stormwater, wastewater, and environmental monitoring where accurate, temperature-controlled composite or discrete samples are critical. The unit features programmable controls for time-, flow-, or event-based sampling, a powerful peristaltic pump with LD90 liquid detection for precision volume control, and flexible bottle configurations to suit project needs. Battery, AC, and solar power options make it adaptable for both short-term studies and long-term compliance monitoring in remote or urban locations.

ISCO Signature Flowmeter

The ISCO Signature Flowmeter is designed to work seamlessly with fixed water samplers, providing precise open-channel flow measurement for rivers, streams, and wastewater channels. Its compact, portable design allows for quick deployment in the field, while ultrasonic and area-velocity sensing ensures accurate, real-time flow data under a wide range of conditions. By integrating directly with portable samplers, it enables flow-paced or event-triggered sampling, ensuring that collected water samples accurately reflect actual flow events. The flowmeter features intuitive software for on-site configuration and data logging, rugged waterproof housing for reliable operation in harsh environments, and flexible power options to support remote or extended deployments. This combination of portability, accuracy, and integration makes it ideal for environmental monitoring, stormwater compliance, and wastewater studies.

Discontinued Samplers - Some models still have parts available!

If you’re maintaining an older ISCO sampler, we’ll do our best to track down the parts you need to keep it running. When replacement parts are no longer available, our team can guide you toward a current model that matches your application—whether you need portability, refrigeration, or advanced flow measurement. Either way, we’ll help you find the right solution to keep your monitoring program on course.

ISCO Avalanche

The ISCO Avalanche was once a go-to refrigerated sampler, known for its compact design and ability to handle multiple bottle configurations in the field. Built for stormwater, wastewater, and industrial monitoring, it offered flexibility but has since been discontinued.

Today, the ISCO BLZZRD now takes its place. Engineered for demanding outdoor conditions, the BLZZRD features superior cooling performance, rugged durability, and simplified maintenance. It’s purpose-built for the same stormwater and compliance applications where the Avalanche excelled—just with the benefit of modern technology and greater reliability.

👉 Still running an Avalanche? We can help you source remaining parts if available. Otherwise, our team will get you set up with a new BLZZRD sampler that fits your program requirements. Contact us or call (916) 341-9002 to get started.

ISCO Glacier

The ISCO Glacier offered a simple, energy-efficient approach to refrigerated sampling. With its lightweight build and reliable cooling system, it became a favorite for municipalities and field crews that needed dependable refrigeration without a lot of extras. Though it proved to be a workhorse for many years, the Glacier has now been discontinued.

The modern successor is the ISCO BLZZRD—a rugged, field-ready refrigerated sampler designed to thrive where the Glacier left off. With upgraded insulation, advanced cooling, and durable construction, the BLZZRD delivers consistent performance in tough environments while meeting today’s compliance demands.

👉 Need guidance moving from a Glacier to a BLZZRD? We’ll help you find any remaining parts or make the switch to a new sampler that’s ready for years of reliable service. Contact us or call (916) 341-9002 to get started.

ISCO Platinum Vacuum Sampler

The ISCO Platinum Vacuum Sampler stood out with its vacuum-based sample collection method, designed for accuracy in composite sampling. While innovative, vacuum technology has been phased out and is no longer supported in current ISCO models.

Today, the ISCO 5800 Refrigerated Sampler carries the torch with a peristaltic pump design that provides reliable, contamination-resistant sampling in a wide range of applications. It offers improved durability, simpler maintenance, and compliance-ready performance for modern monitoring needs.

👉 If you’re maintaining a Platinum Vacuum Sampler, we’ll do our best to help you find remaining parts. When you’re ready to upgrade, we’ll guide you through transitioning to the ISCO 5800 or a similar model that matches the needs you have now. Contact us or call (916) 341-9002 to get started.

ISCO Optima Vacuum Sampler

The ISCO Optima Vacuum Sampler was engineered for precision composite sampling, using vacuum technology to deliver accurate flow-proportional samples. Like the Platinum, the Optima has since been discontinued as ISCO transitioned away from vacuum-based designs.

The modern alternative is the ISCO 5800 Refrigerated Sampler, built around a rugged peristaltic pump system. While different in technology, the 5800 is engineered to meet the same monitoring demands—providing reliable sample integrity, improved ease of use, and long-term support from ISCO.

👉 Running an Optima? We can help track down available parts or work with you to set up a smooth transition to the ISCO 5800 or whatever best suits your current needs. Contact us or call (916) 341-9002 to get support.

ISCO 4700 Sequential Composite Sampler

The ISCO 4700 was one of the early refrigerated samplers that set the standard for dependable automatic water sampling. Known for its straightforward programming and rugged construction, it served reliably in wastewater plants and field applications for many years. The 4700, however, has been discontinued and is no longer supported.

For a current solution, the ISCO 5800 Refrigerated Sampler or the ISCO 6712 is the natural choice. It builds on ISCO’s legacy with modern electronics, enhanced cooling performance, and a more user-friendly interface—making it easier to meet today’s regulatory and environmental monitoring requirements.

👉 If you’re operating a 4700, we’ll help you explore parts availability or get you set up with a new ISCO sampler. Contact us or call (916) 341-9002 to plan your upgrade.

ISCO CVE-81 Explosion Refrigerated Vacuum Sampler

The ISCO CVE-81 was a specialized sampler designed for hazardous locations, featuring explosion-proof construction to meet strict safety requirements. This model has been fully discontinued, and ISCO does not currently offer a direct explosion-proof replacement.

While there is no one-to-one successor, our team can help you evaluate your application and identify the best path forward. Whether that means sourcing remaining parts, adapting a modern ISCO sampler, or exploring compatible safety solutions, we’ll work with you to keep your sampling program compliant and reliable.

👉 Need help replacing or upgrading a CVE-81? Reach out today—we’ll chart the best course for your specific requirements. Contact us or call (916) 341-9002.

Refrigerated ISCO Sampler Accessories

Collection Bottles

Available in various sizes and configurations, these bottles securely store collected samples for accurate analysis.

Sampler Tubing

Durable tubing designed for reliable water intake, ensuring consistent sample collection over extended periods.

Sampler Batteries

High-capacity batteries that provide extended power for samplers, enabling long-term, unattended operation in remote locations.

Call us at (916) 341-9002

Need Assistance?

Our team is ready to help you select, install, and troubleshoot accessories to ensure your water sampling program runs smoothly.

Flow Modules

Modules that integrate with samplers to measure flow rates, enabling flow-paced sampling for accurate data collection.

AC & Solar Power

Flexible power options for samplers, allowing operation from standard AC outlets or solar panels for extended, off-grid deployments. Battery-backed input is also available.

Pump Heater

Prevents freezing in the sample line or bottle during cold weather operation to ensure continuous functionality.

Booster Pump

Provides additional suction lift and flow capacity, ensuring reliable sample collection in deep manholes or long intake lines.

Rain Gauge

An instrument that measures rainfall, triggering samplers to collect samples during specific precipitation events.

Stormwater quality monitoring in hot climates
Wastewater composites needing cold storage for lab accuracy
Temperature-sensitive environmental and research sampling
Long-duration studies where passive cooling is essential

wastewater refrigerated composite sampler

Tell us how we can help you!

We’ll help you spec the right sampler or find the right parts and accessories.
(916) 341-9002 or use our website's contact form.

A field technician wearing safety gear installing and programming an ISCO sampler