Security cameras are used either indoors or outdoors. They can help monitor your home, office or even the public places.
Before you purchase the camera, you should make sure that it has manual that is the manufactures instructions on how it should be installed and used. It will be easy to fix them and easy to use since you have been given the instructions. If it has no manual, then you will be forced to invest some funds to make sure that you are taught how to use it to be able to use it effectively.
You should consider whether you want a tilt or a static camera. A tilting camera can be able to record a more prominent area compared to a static one. If you're going to put your surveillance for bigger area view, you should consider a panning security camera. If you just want a section of place, then you should use usb spy camera, for example, a single corridor can be monitored with a static camera.
You should consider what you want to view. For example, you might want to put security cameras for you to see anyone trespassing on your property. It can be your office. There are some cameras which detect any motion and send you a notification to alert you. It is efficient when you have some useful items or pieces of equipment which you want to protect them from theft, or they should be top secret. It will help you to run back or send someone like private guards or even the police to take care of it.
You should decide whether you need a camera with Wi-Fi or not. www.senteltechsecurity.com can help you view your home from any corner of the world. Maybe you have put the camera in your home to view your nanny who keeps watching after your kids. Some nannies are known to have the wild behavior of mistreating kids in the absence of their parents. It will help you if you see that your baby is being harassed you can act in haste to protect your kid.
You should select a camera with high resolution to make sure you get the best clear images of the people and things involved. There are cheating partners who might be cheating with your best friend. If they are to come home, you might want the clear image to get the proof.
If you are recording in the dark places or during the night, then you better invest in night vision cameras. They are the best when it comes to see and record in the dark. https://en.wikipedia.org/wiki/Surveillance