PURPOSE: To obtain a device for preventing close watching disabling a viewer to watch television if he approaches extremely to the television receiver by providing a pressure sensor installed in front of the television receiver to detect the load applied.

CONSTITUTION: A pressure sensing mat 3 is installed in front of the television receiver 1. The preventing device is provided among a commercial power supply, a power plug 2 and an output of the pressure sensing mat 3. When the pressure sensor mat 3 detects a pressure, a winding 7 is excited, a relay contact 8 is turned off and the AC 100V power to the television receiver 1 is cut off. Thus, the picture is erased and the AC 100V power is cut off until a little child parts from the pressure sensor mat 3. Further, a power switch 11 of the detecting circuit 5 is constituted that the winding 7 is not energized even if there exists any pressure change in the pressure sensor mat 3 by turning off the power switch 11 and the picture of the receiver 1 is not erased. Thus, the power switch 11 is turned on if a little child closes to the television receiver.