Abstract: An apparatus and method include, among other things, providing a plurality of sensors for a tire pressure monitoring system where each sensor is associated with tire parameter properties and has sensor parameters. Each sensor has a unique initial identification. A new unique identification is automatically generated for each sensor to replace the initial identification in response to a predetermined condition that is associated with at least one sensor parameter.

Abstract: An apparatus and method include, among other things, providing a plurality of sensors for a tire pressure monitoring system where each sensor is associated with tire parameter properties and has sensor parameters. Each sensor has a unique initial identification. A new unique identification is automatically generated for each sensor to replace the initial identification in response to a predetermined condition that is associated with at least one sensor parameter.

Abstract: A tracking device is provided having a normally open passive switch for detecting when a door on a container has been opened or has been attempted to be opened. The device includes a powered communication system and the normally open passive switch that is biased toward a closed position. The switch is maintained in the normally open condition via a magnet disposed near the switch. The magnet is disposed on a rotatable container latching rod. The switch includes a magnetically reactive element coupled thereto. When the magnet is moved away from the switch, such as when the container rod is rotated, the bias in the switch will cause the switch to move to the closed position. Upon moving the switch to the closed position, the communications system will transmit a message that the door is open. When the switch is in the normally open state, the circuit on which the switch is disposed will not draw any power.

Abstract: A tracking device is provided having a normally open passive switch for detecting when the tracking device has been removed from a container on which it has been installed. The device includes a powered communication system and the normally open passive switch that is biased toward a closed position. The switch is maintained in the normally open condition via a magnet disposed near the switch. The magnet is disposed on the container and aligned with the switch. The switch includes a magnetically reactive element coupled thereto. When the tracking device is moved away from the container, the magnetic force on the switch will be reduced, and the bias in the switch will cause the switch to move to the closed position. Upon moving the switch to the closed position, the communications system will transmit a message that the device has been removed. When the switch is in the normally open state, the circuit on which the switch is disposed will not draw any power.