Mariomaster,
Do you think we may need to send these back once a year or at all for some recalibration? I'm just curious if the long term stability after applying lasers to the thermopile may be a cause for recalibration?
Hi, I am interested in your IR filter. May I know how much percentage of IR can be blocked by your filter? Do you also offer slightly larger piece like 1cmx1cm?
I got in on a meter :yh:
I'm interested in a 1x1cm IR filter also. Do you guys carry that?