No hay artículos en el carro
No hay artículos en el carroExtech RF40 - Refractómetro de refrigerante de motor y ácido Fahrenheit
HTA-DC
Comentado en los Estados Unidos el 14 de septiembre de 2023
Product appears to be of high quality, nice plastic case and easy to follow instructions.Have used this tester twice and have positive results!
Russell Hatrick
Comentado en Canadá el 21 de octubre de 2019
Just like I say, it worked well. With Extech, make sure you get the right one though! They can be hard to determine if you're looking to test battery acid, or coolant.
ADi
Comentado en el Reino Unido el 19 de octubre de 2017
If you have ever used a hydrometer to measure specific gravity of battery acid, radiator coolant etc... Do what I did.Close the bonnet of the car on it.Then buy a refractometer.Much more accurate (1% vs 4-8%) only needs 1 or 2 drops of fluid, and so easy to take a reading.A million times better than trying to read a floating hydrometer.When I am king, it will be illegal to use a hydrometer, and refractometers will be mandatory.I like it...
Customer
Comentado en Canadá el 20 de noviembre de 2016
We live in an off grid solar home, where the systematic assessment of battery health is a No Brainer. This instrument is so much easier to use than the standard well calibrated hydrometers, and appears to agree quite well with their findings. It certainly saves on performing neck twisting contortions and questioning one's eyesight, in a tightly configured battery box. I have essentially retired my fleet of hydrometers, in favour of the Extech.
Dale Lee Sumner
Comentado en los Estados Unidos el 21 de enero de 2013
As an RV tech, I use this tool to check the specific gravity of the house and chassis batteries on any RV that I am working on. Much more accurate than just using a DC Volt meter or hydrometer. Easy and quick to use. I can check all of the cells in just a few minutes. Highly recommended to anyone who deals with lead-acid batteries on a regular basis!
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