Product Category Search
Top rated flow switches
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Best overall
Dwyer Instruments Series V4 Flow Switch
Reliable and widely used for liquid flow detection with adjustable set point.
- Durable construction
- Easy installation
- Adjustable flow set point
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Best for HVAC
McDonnell & Miller FS7-3T Flow Switch
High-quality switch with brass body, ideal for water flow monitoring in HVAC systems.
- High reliability
- Corrosion-resistant materials
- Wide flow range
- Slightly higher price
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Best budget pick
Gems Sensors FS-380P Flow Switch
Compact and affordable piston-type flow switch for low-pressure applications.
- Affordable
- Compact size
- Simple design
- Not for high pressure
- Limited flow range
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Best for industrial use
Honeywell HFS-25T Flow Switch
Rugged SPDT switch with adjustable set point, suited for industrial water lines.
- Sturdy build
- SPDT contacts
- Adjustable set point
- Requires regular maintenance
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Best value
Johnson Controls F61KB-1C Flow Switch
Cost-effective paddle-type flow switch with reliable performance for chilled water systems.
- Good value
- Easy to install
- Durable paddle
- Paddle may break in debris
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Wika S-20 Flow Switch
High-end switch with excellent accuracy and repeatability for critical applications.
- High accuracy
- Stainless steel body
- Long lifespan
- Expensive
- Complex setup
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Ashcroft G-Series Flow Switch
Robust switch with hermetically sealed contacts, ideal for hazardous environments.
- Hermetically sealed
- Wide temperature range
- High pressure rating
- Limited availability
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