Squirrel SQ16 Pro Data Logger, 8 differential or 16 single ended channels suitable for 2/3/4-Wire PT100, Thermocouples, V and mA inputs with 2 fast channels (max 100Hz). 32 bit resolution, 16GB internal memory (800 million readings), 8 digital inputs and 4 digital alarm outputs. Includes an in-built WiFi Connectivity to allow direct connection to a standard PC wireless Ethernet network. USB to PC connection & Bluetooth wireless interface, complete with SquirrelView, AA Batteries, signal connectors, screwdriver and USB to PC cable.