1 Clockwise horizontal angle
2.3.5 [R/L] key
Press the [R/L] key to change from clockwise to counterclockwise rotation. A clockwise or counterclockwise reading is alternately displayed each time the key is pressed.
Count horizontal angle in a right rotation direction (HR)
2Counterclockwise horizontal angle Count horizontal angle in a left rotation direction (HL)
If the power turns off during the counterclockwise mode, the display returns to a clockwise horizontal angle display when power is turned on.
2.3.6 [Illumination key 
]
Pressing the 
key, illuminates the LCD panel and telescope reticule. The illumination is automatically turned off after five minutes. Pressing the key, with illumination on, turns off the illumination.
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