This thermometer can read the temperature at two locations.

It has two displays which give a permanent read out of the two sensed temperatures.

The internal sensor is sensitive over a -10°C to +50°C range while the external sensor over a -50°C to +60°C range.By means of a max-min button the read-out will show either the current reading, or a reading from memory recording either the maximum or the minimum reading since the thermometer was last reset.
A flag in the display shows which is being read. This function is available for both the internally and externally sensed temperatures.