Automation Products Group, Inc. manufactures sensors to measure and control your manufacturing, extraction, calibration, and treatment processes. Our sensors use the latest technology in pressure, level, volume, presence, and flow detection. Our specialties include floats, gauges, level, pressure, ultrasonic, general purpose & custom sensors. Automation Products Group, Inc. (APG), an ISO 9001 certified manufacturer, specializes in liquid level sensor and pressure transducer design and manufacture. We help you by manufacturing the best sensors in their class, known around the world for their reliability in applications both harsh and mundane.