@rileyf If your question is "when you see 2 black arrows is this 1/2 dose." Each click is 10 mcg. To see the 2 directional arrows in the window together, you would have had to had 4 clicks which is 40 mcg. The injection is programed at 8 clicks or 80 mcg, so the answer would be yes, the 2 arrows would be 40 mcg or 4 clicks.