---
product_id: 526317544
title: "FW Murphy Temperature Gauge 2\" 20T Series (20T-250-8-1/2 8FT Capillary)"
brand: "fw murphy"
price: "FREE"
currency: EUR
in_stock: false
url: https://www.desertcart.ie/products/526317544-fw-murphy-temperature-gauge-2-20t-series-20t-250-8
store_origin: IE
region: Ireland
---

# 8FT Capillary 20T Series 2" Display FW Murphy Temperature Gauge 2" 20T Series (20T-250-8-1/2 8FT Capillary)

**Brand:** fw murphy
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Elevate Your Monitoring Game!

## Quick Answers

- **What is this?** FW Murphy Temperature Gauge 2" 20T Series (20T-250-8-1/2 8FT Capillary) by fw murphy
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/526317544-fw-murphy-temperature-gauge-2-20t-series-20t-250-8)

## Best For

- fw murphy enthusiasts

## Why This Product

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

## Key Features

- • **Durable Design:** Built to withstand tough environments.
- • **Easy Installation:** Quick setup for immediate use.
- • **Precision Monitoring:** Stay ahead with accurate temperature readings.
- • **Versatile Applications:** Perfect for various industrial settings.
- • **User-Friendly Interface:** Clear display for effortless reading.

## Overview

The FW Murphy Temperature Gauge 2" 20T Series is a robust and reliable instrument designed for precise temperature monitoring in industrial applications. Featuring an 8FT capillary for flexible installation, this gauge ensures accurate readings in even the most challenging environments.

## Description

2" Temperature Swichgage. Available in a variety of pressure ranges and capillary lengths. Product number breakdowns: 20T-250-4-1/2 = 2" gauge, 130-250F Range, 4FT capillary length, 1/2" NPT Connection.

## Features

- Sold on desertcart

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01DYLXX6Y |
| Best Sellers Rank | #1,262,905 in Automotive ( See Top 100 in Automotive ) #167 in Industrial Pressure Gauges #907 in Automotive Gauge Sets |
| Brand | FW Murphy |
| Brand Name | FW Murphy |
| Customer Reviews | 4.7 out of 5 stars 113 Reviews |
| Manufacturer | FW Murphy |
| Material | Metal |
| Material Type | Metal |
| UPC | 600713096699 |

## Product Details

- **Brand:** FW Murphy
- **Material:** Metal
- **UPC:** 600713096699
- **Manufacturer:** FW Murphy

## Images

![FW Murphy Temperature Gauge 2" 20T Series (20T-250-8-1/2 8FT Capillary) - Image 1](https://m.media-amazon.com/images/I/81NEjwf3i3L.jpg)
![FW Murphy Temperature Gauge 2" 20T Series (20T-250-8-1/2 8FT Capillary) - Image 2](https://m.media-amazon.com/images/I/81YJFOivnrL.jpg)

## Available Options

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

## Questions & Answers

**Q: can it be wired to an alarm buzzer on a boat?**
A: This does not have an alarm prior to shutdown.  

image.png

**Q: Will this work on an older Mercedes marine diesel engine, 1970s?**
A: works with any engine that has a port for 1/2" pipe thread, Mercedes were metric, you would need to make your port threads to 1/2" NPT.  Also, To work this gauge right you need a tattletale relay to shut engine off when temp gets to high.

**Q: Which one has the single wire terminal post to activate the shutdown? That is the one I need.**
A: They're all the single wire. The last few digits are the length of the capillary tube. Its a 20t series (gauge mounting size 2"), 250 degrees max and the rest of the numbers are the length (6ft) and pipe thread size (1/2).

**Q: Is this 24 volt?**
A: You can use on virtually any DC voltage. It just grounds 1 wire when tripped. It must be used in connection with a Murphy switch or you could wire through a relay using the n.c. side for normal operation and this will ground and open the circut.

## Frequently Bought Together

- FW Murphy Temperature Gauge 2" 20T Series (20T-250-8-1/2 8FT Capillary)
- Murphy 20P-100 Oil Pressure Gauge
- Murphy by Enovation Controls 20P7-100, 2" Pressure Swichgage w/Lockout, 0-100 psi (05703207)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-12*