Manually detecting when the fluid flow signal reaches a certain threshold can be tedious or inaccurate due to variability in reaction times. To help with this, LabChart has graphical aids such as Guide Lines and the DVM mini window, and the Event Manager Add-On to automate this type of detection. Event Manager continuously monitors the level of the signal in real-time and can automatically start a series of actions when a set threshold is reached, which includes either prompting the user or running a pre-programmed event script.