The REM Puck is an antenna-less modern take on the REM Pod. A modern design with an EMF and proximity sensing bubble with an 18 inch diameter. It plays a playful melody when activated. One melody plays when the EMF is triggered and a different melody plays when the proximity sensor is triggered. The sleek, no antenna, design encloses 3 circuits. There is an EMF sensing circuit, a REM proximity sensing circuit and a low battery circuit. When the battery gets low the other two circuits are turned off and a red light will illuminate letting you know the battery is low. No more false positives due to a low battery.  (Watch Video Below)

• Alerts with a melody rather than an alarm
• Antenna-less
• Has a low battery circuit to eliminate false positives
• Detects motion and EMF
• Motion detection continues through stationary objects such as walls
• 18 inches of an EMF bubble around the unit
• Filters out noise such as the electrical in a building
• REDUCE FALSE POSITIVES Unit filters out cell phone frequencies and 2-way communication.  
• Tripod insert located on the bottom
• Long battery life when Li-Ion batteries are used

As far as sensitivity to proximity, the device uses microwave sensing. It generates a powerful EM field 18 inches around itself WITH NO ANTENNA! The EMF detection is in the low EMF range, not the ELF. Most paranormal gear such as the K-II are extreme low frequency (ELF).  That means the device can pick up frequencies higher than 20k and filters out noise such as the electrical in a building. Plus, it also filters out cell phone frequencies and 2-way communication.   ALL TO REDUCE FALSE POSITIVES.