Anti-Freeze Tester

-7°C to -37°C


  • Coloured discs indicate protection level
  • Tests coolant levels
  • Easy-to-read temperature table
  • Sturdy plastic body
  • Suitable for use with ethylene glycol anti-freeze

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4.71 out of 5 stars
7 review(s)
Silverline Guarantee

Product Specification

Product Weight 0.124kg
Material - Secondary Construction Rubber bulb
Range -7°C to -37°C


Key Features

Disc-type tester with plastic body and rubber bulb. Freeze protection level indicated by 6 x floating coloured discs. Easy-to-read temperature table. For determining levels of ethylene glycol anti-freeze.

Box Contents

  • 1 x Anti-freeze tester

Customer Ratings

By: S S

15 May 2018

Very Good, at a reasonable price. Tested it onto 2 cars and it was accurate. Would recommend for others to buy. A must have tool for winter weather.

By: Greg M

19 April 2018

Bought the tester, simple and effective to use. Great value for money

By: Ray H

31 October 2017

I purchased the Tester a few days ago as I was informed on my last service that my anti freeze should be at least -25 C and mine was only reading -10 C so rather than keep taking it back to the garage to have it checked I purchased the tester and then registered it for the life time guarantee.

By: John

30 October 2017

Great value anti-freeze tester, easy to use with accurate results

By: Jose M

01 May 2017

Hello, it is wonderful, I have seen that the measure is normal and it seems it is real. My anti freeze liquid has been into the engine six years or 50000 km , and it is time to change it, the protection grade is quite low now a days and thanks to it, I am going to change the liquid with complete security that it is time to do it now. Thanks to the brand.

By: Geoffrey B

14 February 2017

Does what is required and gives a clear reading.

By: Rhys d

10 October 2016

I find this product brilliant so simple to use, the only down side is when you fill it up there is no way to stop the fluid from falling out of the bottom. Otherwise perfect have used it several times.

Reviews & Awards

This was much cheaper than the Laser and Draper disc testers, yet more accurate. Its instructions were very good, covering heat, skin and eye protection, and the toxic danger posed to children They also emphasised disposing of coolant with the household waste, not putting it down the drain.

Lifetime Guarantee

This Silverline Anti-Freeze Tester is guaranteed for a period of 30 days from date of purchase against a fault developing in either the materials or the workmanship during manufacture. You can register for your Lifetime guarantee by registering your product online. Any faulty goods will be repaired or replaced free of charge.

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