---
product_id: 185148472
title: "Gems Sensors FS-600 Series Stainless Steel 316 Flow Switch, Straight, Thermal Dispersion, 4.34 gpm Flow Setting, 1\" NPT Female"
brand: "gems sensors"
price: "€ 672.43"
currency: EUR
in_stock: true
reviews_count: 2
url: https://www.desertcart.ie/products/185148472-gems-sensors-fs-600-series-stainless-steel-316-flow-switch
store_origin: IE
region: Ireland
---

# SPST switch with precise electrical specs 4.34 gpm flow setting for accurate monitoring 316 Stainless Steel durability Gems Sensors FS-600 Series Stainless Steel 316 Flow Switch, Straight, Thermal Dispersion, 4.34 gpm Flow Setting, 1" NPT Female

**Brand:** gems sensors
**Price:** € 672.43
**Availability:** ✅ In Stock

## Summary

> 💧 Flow with confidence — precision meets power in every drop!

## Quick Answers

- **What is this?** Gems Sensors FS-600 Series Stainless Steel 316 Flow Switch, Straight, Thermal Dispersion, 4.34 gpm Flow Setting, 1" NPT Female by gems sensors
- **How much does it cost?** € 672.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/185148472-gems-sensors-fs-600-series-stainless-steel-316-flow-switch)

## Best For

- gems sensors enthusiasts

## Why This Product

- Trusted gems sensors brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Integration:** Equipped with a standardized 1" NPT female connection and M12 x 1 (4-pin) electrical termination for easy installation.
- • **Minimal Flow Variation:** Maximum set point differential of 0.2 guarantees high sensitivity and quick response to flow changes.
- • **Precision Flow Control:** Calibrated at 4.34 gpm to ensure reliable and consistent flow detection in critical systems.
- • **Industrial-Grade Durability:** Crafted from premium 316 stainless steel for unmatched corrosion resistance and longevity.
- • **Reliable Electrical Performance:** SPST switch rated for 30 VAC @ 45 mA and 42 VDC @ 65 mA ensures stable and safe operation.

## Overview

The Gems Sensors FS-600 Series Flow Switch combines rugged 316 stainless steel construction with precise thermal dispersion technology, delivering reliable flow detection at 4.34 gpm. Designed for professional-grade applications, it features a 1" NPT female connection and a robust SPST switch with exacting electrical ratings, ensuring seamless integration and dependable performance in demanding environments.

## Description

FS-600 Series - No Moving Part, Thermal Dispersion Flow Switch. The FS-600 series uses proven thermal dispersion technology to provide a robust no moving part flow switch even without filtration. The solid state sensor is compatible with both conductive and non-conductive fluids. Suitable for fluids with particulates or slurries, and is immune to changes in media viscosity. The straight through switch is designed for a long life and can be mounted in any orientation and can handle a wide range of flow rates. No moving parts means years of reliable service.

## Features

- Wetted Materials: 316 Stainless Steel, 303 Stainless Steel
- Electrical Termination: M12 x 1 (4-Pin) (1meter cable included
- Switch Type: SPST (30 VAC @ 45 ma, 42 VDC @ 65 ma)
- Set Point Differential (Maximum): 0.2
- Recommended Filtration: N/A

## Images

![Gems Sensors FS-600 Series Stainless Steel 316 Flow Switch, Straight, Thermal Dispersion, 4.34 gpm Flow Setting, 1" NPT Female - Image 1](https://m.media-amazon.com/images/I/81zyLDnS2IL.jpg)
![Gems Sensors FS-600 Series Stainless Steel 316 Flow Switch, Straight, Thermal Dispersion, 4.34 gpm Flow Setting, 1" NPT Female - Image 2](https://m.media-amazon.com/images/I/81TN9nN5T7L.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works correctly and reliably
*by A***A on September 10, 2019*

Great construction, easy to install, basically plug-and-play once I figured out the wiring. Contacted the manufacturer once to clarify the specs and they were very helpful.

### ⭐ great build but it doesn't work directly with 24VAC contactor
*by F***T on January 4, 2015*

great build but it doesn't work directly with 24VAC contactor. i tried it and hang up it changes from always open to always close switch. may this situation can be corrected by used intermediate 46 ma Relay

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-22*