Hobo 4 Channel Thermocouple Data Logger, -20 to 70 C (-4 to 158 F), +/- 0.21 C from 0 to 50 C (0.38 F from 32 to 122 F), Memory: 4 MB, Each

The HOBO UX120 Thermocouple Logger is a four-channel LCD data logger for measuring and recording temperature in a broad range of monitoring applications. The logger makes it easy and convenient to record temperatures over a broad range (-260 to 1820 C) and can accept up to four J, K, T, E, R, S, B, or N type probes.

In addition to accepting four thermocouple probes, the logger features an internal temperature sensor for logging ambient temperatures, further extending the range of application possibilities.