As Seen on Ghost Adventures

 You can use this device to detect movement towards you and in front of you. You can also use it to communicate by getting a spirit to use gestures to light up different lights on the TIR.   
  
The TIR-Crosshair can be used as an interactive and gesture interactive tool, or by using the X & Y sequential LED array warm and cool anomaly events can be detected, isolated and tracked within the environment during your investigation. 

The TIR-Crosshair is a dual axis Thermal IR paranormal investigation Device. It utilizes a very small 64-pixel Thermal Matrix Infrared sensor to detect thermal energy within a 60-degree field of view. The maximum detection range under ideal conditions is approximately 10’. Detection is represented using a 6 LED sequential array for each X & Y axis. Each individual LED change represents a 7.5-degree shift in thermal position, equivalent to a small human step at a 6’ distance. Under “Normal” conditions, it is important to understand that warm objects located within a cool environment, or cool objects in a warm environment would be more easily detected than an object with a temperature at or near the environment temperature.