Free Autosamplers, Flow Meters, & GeneXperts
Last updated March 3, 2025
What We Offer
As part of our ongoing cooperative agreement with the U.S. CDC, WEF has been providing free automatic samplers and flow meters to rural, small, territorial, and tribal wastewater utilities over the past three years. These resources are offered with the understanding that utilities are not required to participate in public health wastewater monitoring programs after receiving their autosampler (and flow meter, if requested).
Important Deadlines
Applications for the 2025 program have already closed, and there are no deadlines to be aware of at this time.
Materials for the 2024 Program
If you received a free autosampler or flow meter in 2024, you can find safety, installation, and programming videos – as well as quick-start guides and user manuals – for the Hach AS950 refrigerated autosampler, Hach US9001B flow sensor, Teledyne GLS portable sampler, Teledyne 5800 refrigerated sampler, and Teledyne TIENet 310 Sensor and Signature Meter below.
Click on one of the following links to jump to the materials for a specific device:
Teledyne Refrigerated Autosampler
Teledyne Level Sensor and Flow Meter
Hach Refrigerated Autosampler: AS950

User Interface Video
Programming Flow-Weighted Composite Samples Using Flow Sensor
Programming Time-Weighted Composite Samples
Working with FSData Desktop Software
Quick Start Guide
User Manual
Hach Flow Sensor: US9001B
Installation Video
US9001 Quickstart Guide
US9001 Flow Sensor Manual
Teledyne Portable Autosampler: GLS

Safety Video
Setup Video
Programming Video
Pocket Guide
User Manual
Teledyne Refrigerated (Cold Weather and Standard) Autosampler: 5800

Safety Video
Setup Video
Programming Video
Pocket Guide
User Manual
Teledyne Ultrasonic Sensor and Flow Meter: TIENet 310 Sensor and Signature Meter

Ultrasonic Level Sensor Manual
Signature Flow Meter Setup and Programming Video
Signature Flow Meter Pocket Guide
Signature Flow Meter Manual