FS-930 Series Piston Flow Switch
FS-930 Series Flow Switches have a unique, patented piston design that assures accuracy within 20% o...View Full DetailsFS-927 Series Piston Flow Switch
FS-927 Series Flow Switches are compact switches that measure only 1" x 2-3/4" (25 mm-70 mm) and are...View Full DetailsFS-926 Series Piston Flow Switch
FS-926 Series Flow Switches are designed for liquids or gases and features a special low-flow piston...View Full DetailsFS-925 Series Piston Flow Switch
FS-925 Series Flow Switches provide accurate detection of excessive or insufficient flow rates in a ...View Full DetailsFS-600 Series Thermal Flow Sensor
FS-600 No-Moving Part Series Flow Switch is a solid state sensor that is compatible with both conduc...View Full DetailsFS-550 Series Paddle Flow Switch
FS-550 Series Flow Switches sense liquid flow in either direction to monitor flow/no-flow conditions...View Full DetailsFS-500 Series Shuttle Flow Switch
FS-500 Series Flow Switches offer low cost flow monitoring with a variety of switch actuation points...View Full DetailsFS-480 Series Piston Flow Switch
FS-480 Series Flow Switch is a large-body inline flow switch that delivers ample flow rates with min...View Full DetailsFS-400 Series Shuttle Flow Switch
The FS-400 Series Flow Switches deliver precise flow detection in water and oil with 1% repeatabilit...View Full DetailsFS-4 Series Piston Flow Switch
FS-4 Series Flow Switches make flow protection economical for a broad range of industrial applicatio...View Full DetailsFS-380P Series Piston Flow Switch
FS-380P Series Flow Switches are rugged inline flow switches that resist clogging as well as metal v...View Full DetailsFS-380 Series Piston Flow Switch
The FS‑380 Inline Flow Switch offers durable, clog‑resistant performance for high‑pressure systems. ...View Full DetailsFS-200 Series Shuttle Flow Switch
The FS-200 Series Flow Switches provide accurate flow detection with 1% repeatability across a wide ...View Full DetailsFS-150 Series Piston Flow Switch
FS-150 Series Flow Switch are slim, inline switches to reduce pressure drops to a minimum. They inco...View Full DetailsFS-10798 Series Piston Flow Switch
FS-10798 Series Flow Switches are externally adjustable switches that are ideal for protecting machi...View Full Details
Reliable Flow Switches for Liquid & Gas Monitoring
Explore Gems Sensors’ piston, shuttle, paddle, and electronic flow switches—engineered for accurate flow/no-flow detection in industrial and OEM systems.
