Free with ASHI membership. 
Its even polarized, I like it. Sign me up for ASHI!
Nick …
Are u sure about that. I’ve never known ASHI to give something away free IF they can sell it.
Is it possible to get an ASHI inspector to demonstrate how the tester works?
Useless for testing a gfi if the user is not grounded.
Excellent design…would love to see their gas leak detector.
Nick, you are bad…so bad.