can it be wired to an alarm buzzer on a boat?

This does not have an alarm prior to shutdown. image.png

Will this work on an older Mercedes marine diesel engine, 1970s?

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.

Which one has the single wire terminal post to activate the shutdown? That is the one I need.

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).

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.

Desertcart Logo

Deliver to Vanuatu

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Description

🌡️ Stay ahead with precision—because every degree counts!

ROBUST BUILD - Lightweight yet durable design ensures long-lasting performance under pressure
TRUSTED BRAND - FW Murphy quality guarantees reliability and professional-grade accuracy
EXTENDED REACH - 8-foot capillary tube offers flexible installation options without compromise
VERSATILE RANGE - Measures temperatures from 130°F to 250°F, perfect for diverse industrial needs
COMPACT PRECISION - 2-inch dial for clear, accurate readings in any workspace

The FW Murphy 2" Temperature Swichgage (20T Series) delivers precise temperature monitoring with a 130-250°F range and an 8-foot capillary tube for flexible installation. Lightweight at just 13.7 ounces, this durable gauge is engineered for professional environments requiring reliable, easy-to-read temperature measurement.

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

VT39536

Duties & taxes incl.

Vanuatustore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

ChatGPT - opens in a new tab Perplexity - opens in a new tab Claude - opens in a new tab Grok - opens in a new tab Google AI - opens in a new tab

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

View all Trustpilot reviews

Manufacturer	FW Murphy
Brand	FW Murphy
Item Weight	13.7 ounces
Package Dimensions	4.88 x 4.8 x 2.83 inches
Item model number	20T
Is Discontinued By Manufacturer	No
Manufacturer Part Number	20T

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

Details

Description

Specifications

Have a Question? See What Others Asked

Common Questions