Amprobe TMD-50 Manual De Uso página 10

There are 2 sets of sockets for thermocouple plugs at the
top of instrument marked with T1 and T2.
basic accuracy.
Press the " " key to turn on or off thermometer. In the
Reading are displayed in either degrees Celsius(°C) or
degrees Fahrenheit(°F). When the thermometer is turned
on, it is set to the temperature scale that was in use
when the thermometer was last turned off. To change
the temperature scale, press the " " key.
Press the key to turn on the Back-Light. Press the " "
key again to make the Back-Light lighter and press " "
3