---
product_id: 34593830
title: "Gems Sensors FS-600 Series Stainless Steel 316 Flow Switch, Straight, Thermal Dispersion, 1.01 gpm Flow Setting, 3/4\" NPT Female"
brand: "gems sensors"
price: "$1729"
currency: NZD
in_stock: true
reviews_count: 2
url: https://www.desertcart.nz/products/34593830-gems-sensors-fs-600-series-stainless-steel-316-flow-switch
store_origin: NZ
region: New Zealand
---

# M12 x 1 (4-Pin) quick electrical termination 1.01 gpm precise flow setting 316 Stainless Steel durability Gems Sensors FS-600 Series Stainless Steel 316 Flow Switch, Straight, Thermal Dispersion, 1.01 gpm Flow Setting, 3/4" NPT Female

**Brand:** gems sensors
**Price:** $1729
**Availability:** ✅ In Stock

## Summary

> 🌟 Flow with confidence, switch to reliability!

## Quick Answers

- **What is this?** Gems Sensors FS-600 Series Stainless Steel 316 Flow Switch, Straight, Thermal Dispersion, 1.01 gpm Flow Setting, 3/4" NPT Female by gems sensors
- **How much does it cost?** $1729 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/34593830-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

- • **Versatile Mounting:** Straight-through design supports any orientation and handles fluids with particulates or slurries without filtration.
- • **Unmatched Durability:** 316 Stainless Steel wetted parts ensure corrosion resistance and long-lasting performance.
- • **Effortless Integration:** M12 x 1 (4-Pin) connector with 1-meter cable included for seamless installation.
- • **Precision Flow Control:** Calibrated at 1.01 gpm for accurate and reliable flow detection.
- • **Zero Moving Parts, Zero Hassle:** Thermal dispersion technology guarantees maintenance-free operation and immunity to viscosity changes.

## Overview

The Gems Sensors FS-600 Series Stainless Steel 316 Flow Switch features a robust thermal dispersion sensor with no moving parts, ensuring maintenance-free, precise flow detection at 1.01 gpm. Constructed with corrosion-resistant 316 stainless steel and equipped with a quick-connect M12 x 1 electrical termination, it supports a wide range of fluids—including slurries—without filtration, making it ideal for demanding industrial applications.

## 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, 1.01 gpm Flow Setting, 3/4" 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, 1.01 gpm Flow Setting, 3/4" 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

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works correctly and reliably
  

*by A***A on Reviewed in the United States 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.

### ⭐ 1.0 out of 5 stars







  
  
    great build but it doesn't work directly with 24VAC contactor
  

*by F***T on Reviewed in the United States 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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**Shop now:** [https://www.desertcart.nz/products/34593830-gems-sensors-fs-600-series-stainless-steel-316-flow-switch](https://www.desertcart.nz/products/34593830-gems-sensors-fs-600-series-stainless-steel-316-flow-switch)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-22*