Hanna Instruments HI 935002 Wired Digital Thermometer for Laboratory Use, K Probe, 2 Input(s), +1350°C Max, ±0.2 %

Watertight thermometer with two inputs
With a wide temperature range and 1600-hour battery life, this thermometer is ideal for use both in the laboratory and in the field.
Double LCD screen shows current temperature as well as the min./max. values for each channel.
The delta between the two channels is given either as an absolute value of the current measurement, or as the difference between the min./max. values.
Turns itself off after one hour of inactivity.
Comes complete with wrist strap, three 1.5 V AA batteries and instruction manual.