Im wearing a heart monitor does it turn on by it self during the day and also when i take it off and mail it do i have to turn it off or it turns off by itself?

The service center may have specific directions and there are usually manufacturer instructions included in the shipping box. The information collected is stored and the device probably may be turned off once the study is completed.

A Holter Monitor records continuously for 24-48 hours and turns off automatically when you take it off. An event monitor is started by you when you feel symptoms. Some automatically sense an abnormal rate or rhythm and turns on the recording for a period of time. As has been stated, if no specific instructions didn't come with the package, when you take off the leads recording ceases.