Is Ghost Hunting real? Should I do it? [Spirituality & Religion]

A friend of mine claims to have seen a lady ghost in a failed project building in my area. The residents living nearby aso share some paranormal experience, last night another group of boys saw it and tried to make a snap while on a bike but couldn't capture it.
Today me and my friends went to check the CCTV footage of the place, and the timing my friend says he saw the lady ghost was 2.50 am to 2.53 am he says she spoke to him in our native language Marathi "come here come here please" seductively.
We checked the footage at that time, and it has some kind of disturbance and clip freezes for those exact 3 minutes we wanted to see.
The CCTV is from surrounding buildings.
We are thinking to buy those ghost detectors on Amazon and go in that place someday at night to check if the ghost is real, and also make a night vision video of inside that building and put it on YouTube.
Just wondering if the ghost detectors are real? Has anyone used them before?
The building is near a temple so many other people say such things don't happen near a temple so there's nothing there..while 50 percentage other residents in the area believe in some kind of paranormal ghostly existence there
Sorry for my bad English