Automatic injection device includes a housing, a syringe, a plunger, and a syringe carrier. The housing includes a barrel. The barrel includes an elongated window to allow viewing of contents inside the housing. The syringe is disposed within the housing and has a reservoir. The plunger is at least partially disposed within the syringe and includes a visual indicator. The syringe carrier is disposed within the housing and configured to contain the syringe and displace the syringe within the housing between a first position and a second position. The syringe carrier has a first opening and a second opening. The first opening is configured to align with the window and the reservoir when the syringe carrier is in the first position, and the second opening is configured to align with the window and the visual indicator when the syringe carrier is in the second position.一種自動注射裝置包括一外殼、一注射器、一柱塞及一注射器載體。該外殼包括一筒體。該筒體包括一細長窗口以允許檢視該外殼內部之內容物。該注射器安置於該外殼內且具有一儲集器。該柱塞至少部分地安置於該注射器內且包括一視覺指示器。該注射器載體安置於外殼內，且經組態以含有該注射器且使該注射器在該外殼內於一第一位置與一第二位置之間移位。該注射器載體具有一第一開口及一第二開口。該第一開口經組態以當該注射器載體處於該第一位置中時與該窗口及該儲集器對準，且該第二開口經組態以當該注射器載體處於該第二位置中時與該窗口及該視覺指示器對準。
