Search for Battery Refractometers on eBay, I got a nice one for under $25 from
China, exact same item I've seen here in the U.S. for >$70. I keep a small vial
of distilled water in the pouch for calibration, just a drop each time is all
it takes. They often include a scale for Antifreeze readings, as does mine. I
don't use my hydrometer much anymore.
>From the Solar, Wind and Hydro powered office of Jeff Oldham/Regenerative
>SOLutions
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1 ridiculously huge coupon a day. Get 50-90% off your city's best!
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