Temperature Data Logger, operating range: -40° to 257° F (-40° to 125° C), removable thermistor probe, wireless connectivity to PC via WiFi, LCD display, min/max readings, low battery indicator, WiFi connection indicator, configurable high/low alarms with indicator, 1 million data entries capacity, rechargeable internal lithium polymer battery, USB port, micro USB lead, wall bracket, 802.11b/g/n compliant, IP55 protection rating for main unit and IP67 for probe