LCD Carbon Monoxide CO Gas Sensor:
from Tumblr http://ift.tt/Sun5uy
via IFTTT
·Loud 85 decible alarm. ·Permanent carbon monoxide sensor. ·Powered by DC9V batteries. ·=·Test/Reset button to test the unit
from Tumblr http://ift.tt/Sun5uy
via IFTTT
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