Gas Flow Meters
Gas Flow Meters measure air/gas flow in aeration basins to optimize oxygen supply and efficiency.
FCI ST Series ST102AA Dual Point averaging Air Flow Meter for large line sizesDual-element insertion air-flow meter; large lines
ST100A Flow MeterST100A is high performance thermal dispersion technology gas flow meter that combines the most feature- and function- rich electronics, and FCI innovations such as Adaptive Sensing Technology™ (AST), with the industry’s most advanced…
ST80 Flow MeterST80 is a high performance, rugged thermal dispersion technology air/gas flow meter that combines ultra-reliable, feature-rich electronics, and FCI innovations such as Adaptive Sensing Technology™ (AST) with the industry’s most…
ST75 Flow MeterThe ST75 Series thermal flow meters are a compact, low cost solution for accurate, repeatable direct mass flow measurement of air and gases. These in-line (spool-piece) style flow meters have no moving parts and are available for use in…
ST51 Flow MeterThe Model ST51 and ST51A are a compact, low cost solution for accurate, repeatable flow measurement of biogas, digester gas, landfill gas, methane and natural gas as well as air, compressed air or nitrogen. This insertion-style flow…
ST50 Flow MeterThe Model ST50 is a compact, low cost solution for accurate, repeatable flow rate measurement of air, compressed air or nitrogen. This insertion-style flow meter has no moving parts and is available in probe lengths for installation…
Flow Switches
Flow switches detect liquid or gas flow presence in aeration systems, ensuring proper operation and preventing damage.
Dwyer Series TDFS2 Thermal Dispersion Flow Switch (Non-Mechanical, Low Pressure Drop, Large Pipes)Measure Flow Above or Below User Set Flow Rate; Normally-Open & Normally-Closed NPN Outputs; LED Indication
FS10i Flow MeterThe FS10i is a compact, economical solution to air and compressed air flow metering. It is the first, and currently only, thermal mass flow meter to meet SIL 2. Utilizing application proven thermal mass flow technology, the FS10i…
FCI FS10A Analyzer Flow Switch + MonitorLow‑Flow Switch & Monitor for Analyzer Lines; ±2 % Setpoint
FLT93 Thermal Dispersion SwitchFCI’s FLT93 Series are the most popularly installed heavy duty thermal dispersion flow and level switches in the world. The reasons are simple; FLT93s were developed from more than 40 years of flow and level switch engineering and…
Flow Conditioner
Flow conditioners improve flow profile accuracy for gas flow meters, enhancing aeration control efficiency.
Flow Meters
Flow Meters monitor wastewater and air flow rates for effective treatment, ensuring optimal aeration and process control.
Water Quality Sensing
Water Quality Sensing measures dissolved oxygen and pH to maintain optimal conditions for biological treatment in aeration.
Level Transmitters
Level Transmitters monitor wastewater levels in aeration tanks, preventing overflows and ensuring consistent treatment volume.
Float Switches
Float switches detect liquid levels in aeration basins and sumps, preventing overflows or dry-running of pumps.
Dwyer Series-L6 Compact Flotect® Level Switch – Magnetic Actuation for Liquid ControlCompact liquid level switch; SPDT; installs in-wall; up to 2000 psig
Dwyer Series-L4 Magnetic Float Switch for Tank Level Control – No Moving PartsMagnetic float switch; leak‑proof body; SPDT; detects tank high/low level
Dwyer Series F6-F7 Vertical Level Switches for Water, Oil & ChemicalsLiquid Level Switch for Water, Oil & Chemicals; Reed Switch; Reversible Switch Action; Hermetically Sealed; Optional Float Materials/Stems
Dwyer F6/F7 Horizontal Mount Level Switch, Multi-MaterialOpen/Closed circuits; Water, oils & chemicals compatible; Through wall mounting
Application data from the DwyerOmega Application Navigator ↗. Ronsor can help adapt it to your site.





