Low pressure warning system

An improved vehicle pneumatic tire pressure sensor and low pressure alert system, comprising:

• at least one transmitter means, each said transmitter means comprising:
• a base;
• a first sensor associated with said base for detecting a normal pressure condition and an abnormal pressure condition surrounding said transmitter;
• a second sensor associated with said base for detecting an inactive pressure condition of a tire surrounding said transmitter;
• alarm circuit means, associated with said base, for generating signals responsive to said first sensor and said second sensor;
• and
• power supply means operatively connected to power said alarm circuit means, said operative condition being disconnectable when said inactive pressure condition is detected;
• and
• at least one receiver means configured to provide alerts perceptible to the human senses responsive to said transmitter means.

An improved method for sensing a pressure of a pneumatic chamber, comprising the steps of:

• monitoring the chamber pressure condition for a normal pressure condition, an abnormal pressure condition and an inactive pressure condition;
• switching responsive to said monitoring to de-energize an alarm circuit means when either the normal pressure condition or the inactive pressure condition is detected and to energize said alarm circuit means when the abnormal pressure condition is detected;
• disconnecting the alarm circuit means from a power supply when the inactive condition is detected;
• generating an alarm signal;
• encoding said alarm signal;
• transmitting said alarm signal;
• receiving said alarm signal;
• decoding said received alarm signal;
• and
• displaying an alarm, responsive to said receiving, that is perceptible to the human senses.