Keyence AP-31A AP Series 12–24V DC Pressure Sensor/Pressure Switch

Product Introduction

The Keyence AP-31A is a precision pressure sensor and switch from the AP Series, designed for industrial automation applications. Operating on a 12–24V DC power supply, this compact device combines accurate pressure measurement with reliable switching functionality. Featuring a 1/2-digit, 2-color display for real-time pressure visualization, it ensures seamless integration into manufacturing systems, providing both analog pressure feedback and digital switching outputs for process control.

Product Features

Wide Operating Voltage Range:

Compatible with 12–24V DC power supplies (±10% tolerance), suitable for diverse industrial setups.

Dual-Functionality:

Pressure sensor: Monitors and displays real-time pressure values.

Pressure switch: Triggers digital outputs based on configurable pressure thresholds.

Compact & Efficient Design:

Low current consumption: 50 mA at 24V, 90 mA at 12V, minimizing power draw in automated systems.

Space-saving form factor for tight installation spaces.

Clear Visual Feedback:

1/2-digit, 2-color display (e.g., green/red) indicates pressure status and alarm conditions at a glance.

Environmental Adaptability:

Operating temperature: 0–50°C, suitable for standard industrial environments.

Relative humidity: 35–85% (non-condensing) for reliable performance.

Technical Specifications

Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of  measuring instruments , located in China xi’an City. Since 2008, Xi'an Kacise focused on the development and production of pressure, level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical and management personnel, through efforts of our entire staff, we have become a professional measuring instrument manufacturer and solution provider. And we are continuously trying to improve product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE, intrinsic safety explosion-proof and isolated safety explosion-proof certificates, etc. which ensure that our products comply with international standards.

Kacise sensors have already been exported to America, Spain, Australia, Chile and 20 other countries and regions, and received many favorable feedbacks. Our overseas distributers are also increasing. We regard “reasonable prices, efficient production time and good after-sales service” as our tenet, and hope to cooperate with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices, and provides industry-leading customer service. We personally get to know each of our customers, and we know how to discover the most valuable part of our business , to help others achieve their goals.