Apparatus comprising a meter configured to perform a blood analysis, the meter having: a housing, the housing having an aperture configured to receive a body part of a user a plurality of light sources supported by the housing and a controller configured to control the plurality of light sources to indicate an operational status of the apparatus.一種包括一被組態以執行血液分析的計器之設備,該計器具有:一護罩,該護罩具有一被組態以承接一使用者的身體部位之孔口;多數之藉由護罩支承的光源;及一控制器,該控制器被組態以控制多數之光源,以指出該設備的操作狀態。100‧‧‧血糖計101‧‧‧第一輸入裝置/按鍵102‧‧‧第二輸入裝置/按鍵103‧‧‧第三輸入裝置/按鍵104‧‧‧顯示器105‧‧‧孔口170‧‧‧第一光源171‧‧‧第二光源172‧‧‧第三光源
