Abstract: A holster includes a system for providing an audio and/or a visual notification differentiating a lethal weapon from a less lethal weapon when one of these weapons is removed from its holster. The holster includes a sensor for detecting the presence of a weapon therein as well as removal of the weapon. Upon receiving a signal from the sensor indicating drawing of the weapon, a microcontroller actuates a speaker and/or a visual display to indicate the type of weapon which was drawn. Others are made aware of the type of weapon being drawn or which is currently deployed. The wearer of the holster is also made aware of a mistake if the incorrect type of weapon is drawn.

Abstract: A system for displaying a number of rounds in a magazine of a weapon may include a force sensitive resistor shaped to be placed in the magazine and engage a magazine spring therein such that a resistance of the force sensitive resistor changes in response to a spring force from a number of rounds in the magazine, a microcontroller connected to detect the resistance of the force sensitive resistor resulting from the spring force upon the force sensitive resistor in response to the number of rounds in the magazine and output an electrical signal indicative of the resistance; and a display connected to respond to the electrical signal, the display having an indicator that is actuated in response to the signal to indicate the number of rounds in the magazine.