Macurco AS-A22-739-739-B Analog AireShield, 2 Remote Sensors, Sensor 1 & Sensor 2: R-22, 2,000 ppm, Add On Buzzer

The AS-A22-739-739-B from Macurco is an analog AireShield, 2 remote sensors, sensor 1 & sensor 2: R-22, 2,000 ppm, add on buzzer.

The Macurco AireShield is your all-in-one solution for advanced refrigerant detection, offering unmatched flexibility across a wide range of applications. Powered by cutting-edge NDIR sensor technology with built-in temperature compensation, it delivers industry-leading accuracy while dramatically reducing false alarms—outperforming older technologies like MOS sensors known for high error rates and constant maintenance.

With a long sensor lifespan and low cost of ownership, the AireShield is designed to go the distance without compromising performance. It not only meets but exceeds regulatory codes and compliance standards. Installation, commissioning, and maintenance are fast and effortless thanks to smart sensor integration, which delivers real-time diagnostics and a full suite of user alerts.

Features

• Easy installation to the wall or 4×4 electrical box
• NEMA4X/IP65 enclosure
• Field replaceable smart sensor
• Temperature compensation technology
• Optional buzzer
• Event logging
• User-selectable settings (Default to industry standards) via a four-button interface
• Analog output options
• 5 A SPDT and 0.5A relays to control fans, valves, louvers, horns, and strobes
• Intuitive calibration process
• Colored notification LED – (alarm, warning, trouble, calibration)