This is a must have instrument for every paranormal reseracher. The REM-POD is one of the most famous tools used for ghost hunting, since it has been seen for 10+ years on the most popular paranormal TV shows and creating remarkable results. This is the latest and most powerful version - the REM-POD-EMT 2.0 with ATDD. It has a larger reach than copy cat REM-POD versions seen on the market. The 360 degree antenna will pick up on energy changes that approaches the antenna and alert you with lights and sound alerts in relation to the distance of the disturbing energy to the antenna. The more lights and louder sound - the closer to the antenna is the entity. The sensitivity can be adjusted. There are 5 different sensitivity levels to choose from. The ATDD function stands for Automatic Temperature Deviation Alert. For every temperature increase or decrease by 5F an audio alert will be heard and a visual alert will be seen - blue for coler - red for warmer. The REM-POD has baselining buttons for the energy field disturbance setting and for the temperature. The top of the pod has a backlight so the device is easy to see in the dark. The antenna is removable. Comes with a 9V battery and a one year manufacturer's warranty. Made in U.S.A.