Specifications

1. Press ºC ºFK to select the correct temperature scale.

2. Hold or attach the thermocouple(s) to the measurement location.

The temperature reading appears in the selected display

1. Press HOLD to freeze the readings on the display. The display shows HOLD.

2. Press HOLD again to turn off the HOLD function.

1. Under temperature measurement mode, press to turn the display backlight on.

2. Press

again to turn off the display backlight. The display backlight will not

automatically off.

1. Press MIN MAX to step through the maximum (MAX), minimum (MIN), or the

average (AVG) readings.

2. Press and hold MIN MAX to exit MIN MAX mode.

Model UT321/322/323/325: OPERATING MANUAL