The AP-31K main unit is a high-precision negative-pressure sensor designed to deliver reliable vacuum and low-pressure measurements in industrial and laboratory environments. Its compact and robust design ensures consistent performance while maintaining ease of integration into automated systems or monitoring setups. Capable of measuring negative gauge pressures ranging from 0 to -29.9 inchHg, the AP-31K is particularly suitable for applications that require accurate control and monitoring of low-pressure air systems or vacuum equipment.

The unit features an NPN output, allowing seamless integration with industrial controllers, PLCs, or other automation systems. This ensures that the sensor can communicate effectively within a variety of control architectures, providing timely and accurate pressure data for process management, alarms, or feedback loops. The NPN output type also supports compatibility with standard industrial wiring practices, making installation straightforward and reducing potential setup errors.

The AP-31K is compatible with air and non-corrosive gases, providing versatility for a broad range of applications. From pneumatic systems to laboratory setups or clean manufacturing environments, this sensor maintains high reliability without the risk of corrosion or degradation caused by exposure to reactive fluids. This broad compatibility simplifies system design and ensures the sensor’s longevity in diverse industrial conditions.

A major strength of the AP-31K is its clear, intuitive digital display. The 3 1/2-digit, 2-color, 7-segment LED display, with 11 mm high characters, allows operators to quickly read and interpret current pressure values. The dual-color functionality enhances visibility and can assist in quickly identifying abnormal pressure readings or alert conditions, improving operational safety and efficiency.

Compact and robust, the AP-31K combines precision, ease of integration, and reliable output in a practical package. Its ability to provide accurate negative-pressure measurements, along with a versatile output interface and durable design, makes it an ideal choice for applications where monitoring vacuum and low-pressure systems is critical. From industrial automation to laboratory instrumentation, the AP-31K ensures dependable performance, clear data visualization, and straightforward system integration.