Dave found this crazy bargain of the century no-name $9 0.02% class multifuction process calibrator on Aliexpress.
Is it any good?
Actually, it's an AIMOmeter AMPX1 that sells for over $200 on ebay, so what gives?
How can they possibly manufacture and sell a 0.02% class device for under ten bucks?
Teardown time.

Links to stores with availability, grab two before they are gone:
GONE! http://s.click.aliexpress.com/e/2q15Asnm
GONE! http://s.click.aliexpress.com/e/KzXfowmG
GONE! http://s.click.aliexpress.com/e/pXZzeMQM
GONE! http://s.click.aliexpress.com/e/N2SvlX3i
GONE! http://s.click.aliexpress.com/e/qREQSsXA
GONE! http://s.click.aliexpress.com/e/n9bRRByU
GONE! http://s.click.aliexpress.com/e/mgEv3VYU
GONE! http://s.click.aliexpress.com/e/B1dhXBHI
GONE! http://s.click.aliexpress.com/e/5SZr1USk
http://s.click.aliexpress.com/e/KOvQe5u8
http://s.click.aliexpress.com/e/MM6QzxEo
http://s.click.aliexpress.com/e/rROyF3hm
http://s.click.aliexpress.com/e/Dw6LDRCk

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