![Bi color led with tri-state pin (high->D1, tri-state->D2, low->off) - Electrical Engineering Stack Exchange Bi color led with tri-state pin (high->D1, tri-state->D2, low->off) - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/sddkA.png)
Bi color led with tri-state pin (high->D1, tri-state->D2, low->off) - Electrical Engineering Stack Exchange
![Bi color led with tri-state pin (high->D1, tri-state->D2, low->off) - Electrical Engineering Stack Exchange Bi color led with tri-state pin (high->D1, tri-state->D2, low->off) - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/Zr2R2m.png)
Bi color led with tri-state pin (high->D1, tri-state->D2, low->off) - Electrical Engineering Stack Exchange
![Dortronics 7281-EAxK332 KA 7281 Series Local Door Exit Alarm, Alarm with Adjustable 2-60 Second Delay, Keyswitch, Alarm Output DPDT Relay, Tri-State LED, Piezo Sounder Reset by Keyswitch, Standard Double Gang Plate Dortronics 7281-EAxK332 KA 7281 Series Local Door Exit Alarm, Alarm with Adjustable 2-60 Second Delay, Keyswitch, Alarm Output DPDT Relay, Tri-State LED, Piezo Sounder Reset by Keyswitch, Standard Double Gang Plate](https://dkstatic.blob.core.windows.net/manufacturers/425/blank/300x300/dortronics.jpg)
Dortronics 7281-EAxK332 KA 7281 Series Local Door Exit Alarm, Alarm with Adjustable 2-60 Second Delay, Keyswitch, Alarm Output DPDT Relay, Tri-State LED, Piezo Sounder Reset by Keyswitch, Standard Double Gang Plate
![Bi color led with tri-state pin (high->D1, tri-state->D2, low->off) - Electrical Engineering Stack Exchange Bi color led with tri-state pin (high->D1, tri-state->D2, low->off) - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/zYKRr.png)