Flow Sensors That Stay in the Ground All Year
Did you know that CST’s flow sensors can safely remain in place during the irrigation winterization process? No winter removal is required! Install once and enjoy year-round performance.
Flow Sensors
A CST flow sensor connected to a smart controller can detect issues such as a broken pipe, a stuck zone valve, or a run-over sprinkler head. When a problem is detected, the smart controller can automatically close the master valve to stop water loss and immediately notify you via email or text.
Installing a flow sensor on every irrigation job saves time, labor, and money—not just by preventing water waste, but also because these sensors do not need to be dug up and reinstalled seasonally. Unlike traditional flow meters that require removal for winterization, CST flow sensors remain in place year-round, reducing effort, protecting equipment, and cutting down on maintenance costs.

PVC Flow Sensor

ELF (Enhanced Low Flow) Sensor

Saddle Flow Sensor

Brass Flow Sensor
Interface & Control
The ISO4 Isoflow is a signal processor that allows up to four control devices to share one flow sensor and control one master valve.
Pathway Wire Sharing Device
The Pathway S01 provides a reliable cost effective method to add a two wire flow sensor and master valve to installed systems where existing pavement, hardscape, or other landscape features make conventional wiring prohibitavely expensive.
The Best Technology for Irrigation Service
Creative Sensor Technology manufactures flow sensors designed specifically for irrigation. Unlike competitors that adapt industrial technology, CST products are built to withstand the harsh underground conditions of real-world systems, including moisture, subsurface challenges, and electrical instability.
CST’s impeller-based sensors deliver accurate, reliable measurement where others fall short. With more than 60 years of proven performance, the design is practical, dependable, and built to last. A single self-cleaning moving part makes troubleshooting easy, and maintenance is no greater than sensors with no moving components, while performance is superior in turbulent irrigation environments.
For users, CST sensors provide peace of mind and savings. They detect broken pipes, stuck valves, or run-over sprinkler heads, automatically shutting off water and sending instant alerts. Unlike traditional sensors, CST flow meters remain in place year-round, eliminating seasonal removal and reinstallation, saving time, reducing labor, protecting equipment, and preventing water loss.
Trusted for turfgrass, landscape, and agricultural applications, CST sensors let you focus on your irrigation system, not maintenance. Just as the solenoid-operated diaphragm valve has been the standard in irrigation for over 75 years, CST’s impeller flow sensor remains the most effective, field-proven solution for accurate flow measurement.
Whether for residential systems, commercial athletic fields or campuses, or municipal installations, CST provides accurate, durable, and purpose-built flow sensors that save time, effort, and money.
Flow sensor models and sizes to fit every sprinkler system and smart controller may be purchased through our distribution network. Call, text, or email us with your questions about products, applications or technical assistance.

