The Laser Smart Power Meter Board is a neat combination of an LCD AC power meter with a four-way master-controlled AC output board. The board actually has six outlets: one always-on, one master and four slave outputs. When the load drawn from the master outlet falls below a user-configurable threshold (10W is the default), the four slave outlets switch off as one. By setting the threshold to 0W, the four slave outlets can become always-on outlets.





