Buy Extech RF40 Battery Acid and Engine Coolant RefractometerExtech RF40 Battery Acid and Engine Coolant Refractometer Product Description:
- Measures the freezing point of ethylene glycol and propylene glycol
- Max resolution 2°F
- Automatic temperature compensation
- Also displays the charge condition of automotive batteries
Product Description
Automotive coolant refractometer measures the freezing point of coolants plus battery charge condition. Requires only a few drops of solution to use.
Customer Reviews
Most helpful customer reviews
1 of 1 people found the following review helpful.
Highly Recommended
By Denis M. Randall
I work as a custodian for a public school system. The new building has a chiller system for cool air. I need to be able to monitor the glycol concentration for proper operation. The Extech RF40 comes with excellent instructions and is easy to calibrate and use. All this at what I feel is a very fair price.
0 of 0 people found the following review helpful.A GREAT tool!!
By Dale Lee Sumner
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!
0 of 0 people found the following review helpful.
Convenience and Accuracy
By Christopher Plona
Bought for use at my off-grid solar powered vacation home.Much easier to take and record accurate specific gravity readings on my batteries. With this easy to use tool I'll be more diligent about watching out for my batteries' health.Recommended.
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