What’s difference between SITE-LOG and PRECISE-LOG data loggers?

Most of SITE-LOG series data loggers have seven external channels and one on-board temperature channel. They can be used in standalone mode or powered by external power supplies. They communicate with computer via its USB port.

PRECISE-LOG series data loggers have eight external channels and they are WIFI enabled.  They can communicate with PC via either USB port or the WIFI network.

WIFI function can be turned on or off.  When WIFI function is turned off it can be used in standalone mode just like SITE-LOG series.