You don’t need any equipment to investigate your haunted home.
Check these resources for more about ghost hunting without equipment, or with low-tech tools. (Links will open in a new window.)
Podcast: Ghost Hunting without Equipment
Basic tools every ghost hunter must have
The next step
If you’re investigating a haunted house, you’ll see the best results with simple tools [...]

Audio and high-tech devices
If you’ve watched ghost-related TV shows, you’ve seen some wonderful research tools.  However, they can be very expensive.
Here are some relatively inexpensive devices that you might consider.

Shack Hack (or Frank’s Box, or Ghost Box)You can buy one of these, but it’s easy to make your own from a standard Radio Shack radio.  [...]

If you are truly frightened in your home, leave immediately. Stay with friends or family while you find out what’s really going on in your house.
When someone is afraid, there may be a good reason for it.  Do not take chances.  Get away from the danger right now.
If it turns out to be something very [...]