TECHNICAL SPECIFICATIONS
1 Rotary selector no. 1 with push-button feature
2 Rotary selector no. 2 with push-button feature
3 Rotary selector no. 3 with push-button feature
(brightness adjustment control)
4 Power On/Off button
5 21 LEDs
6 Main display
7 Micro USB charging connector
8 Charging indicator
9 Two M3 threaded holes for attaching the
device
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