<html><head></head><body><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div>Brian,</div><div>I finally installed my 12 to 5 volt converter to power my CO2 meter. I just chopped off the AC converter and tested to see witch wire was positive and then wired it to the converter. Works a treat and no more AC inverter.</div><div>Hank</div></div></body></html>