Enviro Datalogger,175 T3
4 Degrees F (-40 Degrees to -13 Degrees F), Time Intervals Variable, Software Required Yes, Interface Mini USB to USB Cable, Includes Data Logger,Battery Temp Logger, NTC / Type T or K, Temp..7 Degrees F (-13 Degrees to 131 Degrees F), +/-1.Range (F) -31 Degrees to 131 Degrees F (Internal), -40 Degrees to 248 Degrees F (External), Accuracy +/-0.