Precision Sensors (BPS) Bourns Precision Sensor (BPS) Family was developed for the medical and industrial markets, where high sensitivity and low total error band (TEB) are needed. The family includes dependable sensors for every type of pressure, from precision, ultra-low pressure to high temperatures, harsh environments and one of the smallest, most dependable sensors for measuring relative humidity. Quality, performance and reliability are the core values of this family of sensors.