Electronics > Beginners

huh? what device? coolant checker?

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3roomlab:
in this video @ 1:50
the guy uses a coolant checking device
which of course didnt ring a google bell
anybody out there know what to call this checker? to google?



TheHolyHorse:
It just changes color based on the glycol concentration.

https://www.ebay.com/itm/Universal-Refractometer-Glycol-Car-Antifreeze-Tester-Engine-Coolant-Battery-Acid/323860186090?epid=525511105&hash=item4b679243ea:g:mo4AAOSwRG1cgQlz

Just search for coolant tester.

ConKbot:
Refractometer is another name for it, the scale can vary both in range, and units. Brix is a common scale, calibrated for sugar in water for the beverage industry, with conversions, or dedicated units with a scale appropriate for the sample being measured.
I.e. The refractometer that a machine coolant vendor sells you will of course read directly for the oil emulsion, but an ebay/amazon one in brix may not.

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