2008-05-02
2008-05-01
2008-04-30
2008-04-29
Wal-Mart Uses Motion Sensors to turn Cooler Lights On
Motion sensors above every fourth cooler door (seen at upper left in
photo) sense when customers are walking by and turn lights on as
needed. Lights are on timers to save energy.
photo) sense when customers are walking by and turn lights on as
needed. Lights are on timers to save energy.
2008-04-28
2008-04-27
Subscribe to:
Posts (Atom)

















































