![Twilight TES-660 Instruction Manual Download Page 9](http://html.mh-extra.com/html/twilight/tes-660/tes-660_instruction-manual_1183916009.webp)
-6-
5. NOMENCLATURE AND FUNCTIONS
5-1 The Display and keypad
1. Windscreen and microphone
2. LED indicator
Red: Charging indicator.
Blue: A flashing blue LED indicates the measured value has exceeded the alarm
setting value.
3. Display: View data and various indicators.
4.
key:
On/Off key: Press this key one time to turn on the meter.
Press and hold down this key, A “Power Off 3, 2, 1” countdown will
appear as the meter is powered off.
Enter key: Confirms action of other keys and settings.