Transcript for Home Security Cameras Put to the Test
So many families getting ready to leave on summer vacation. And keep in mind there are one and a half million home burglaries every year and America. So tonight we investigate those tiny security -- -- to alert you when someone is breaking into your home do they work. ABC's -- -- has -- -- to the test. He. Watch the alleged burglar at work police say he broke in grabbing electronics but he is unaware that two tiny cameras heads silently turned on. Alerting the homeowner who was out to dinner letting him watch the break in right on his -- And even letting him tap into the cameras loudspeakers to yell and scare the intruder off there was a real thing and it happens -- -- cameras in the home catching all kinds of burglars in the act. But are they worth the money. So we decided to check out three popular home security cameras so -- with -- into the living room here where we set up those cameras and watched with just a little bit of movement the cameras are trigger they start recording. And some even sent an alert right to your -- If being embraced more and more on the mainstream situations like this happen and we see proof. There effectiveness all three brands we tried dropped cam net gear and dealing worked as advertised each turning on and beaming back real time video and the cost anywhere from a 130 to a 170 dollars. The apps to watch the feed on your -- are usually free. But it's not perfect for example the camera might be -- by your -- innocently moving around in your hope one company dropped camp tells us they are introducing. In this summer alerting only if there's human activity on cameras. They are also introducing a new tabs the system you put the tiny tab about the size of a stick of gum. On doors and windows to see which one was opened. And on items to see if they've moved meanwhile back at that New Jersey home police ended up nabbing the suspect. Who's still in jail tonight. GO -- ABC news New York.
This transcript has been automatically generated and may not be 100% accurate.