PRESSURE INSTRUMENTS Portable Calibration and Low Pressure Monitoring. We are excited to introduce a new line of high accuracy pressure calibrators and sensors/ gauges specifically designed for monitoring pharmaceutical cleanrooms. The KPC 600 series calibrators and LP 1000 series sensors features the accuracy, reliability and, intuitive operation you have come to expect from Kaye. If you are still relying on analog gauges for monitoring critical cleanroom environments, you owe it to yourself to explore these suprisingly cost effective solutions.