Originally this had a glowing report, it worked well and was accurate - the original one was broken and so they sent me a new one HOWEVER
once I got the new one, I did this review and put it in a box for use at a later date.
After someone got in touch with me asking me for the connections (they don't provide them) I thought I would get it out so I could let them know.
The LED backlight lit up, then nothing else happened - I triple checked everything and still nothing.
so about 7 months stuck in a box waiting to be used has some way made it stop working.
the box was not thrown,dropped or mistreated - it was an ESD safe container. So I am going to contact the seller (who I linked below this) let them know it's shit and give them opportunity to explain - 2 failing through no fault of my own is completely unacceptable.