Continuous monitoring. Instant warning. Compact USB-powered CO detection for the cockpit. The MY-CO Carbon Monoxide Detector provides continuous monitoring of carbon monoxide levels while you fly. Simply plug it into a USB Type-A port and it automatically begins monitoring cabin air. Its USB pass-through design means you can continue using the same port to power another device, while the MY-CO monitors CO levels in the background. Key Features: Begins sensing from 1 PPM Visual warning activates at 20 PPM ±1 PPM Fast 1-second alert response Red LED wig-wag warning display Automatic power on/off USB pass-through keeps the USB port available No batteries required Compact and lightweight Includes protective case How It Works: When connected to a USB port, the MY-CO performs a short self-test before displaying a steady green LED to indicate that it is actively monitoring cabin air. If carbon monoxide reaches the 20 PPM alert threshold, the unit displays a prominent red wig-wag LED warning. The detector is designed to be incorporated into your normal cockpit instrument scan. Product Specifications: Detection Range: 0–1000 PPM Alert Threshold: 20 PPM ±1 PPM Resolution: 1 PPM Alert Response: 1 second Port: USB Type-A with USB Type-A pass-through Power: USB powered Batteries: None required Weight: 0.54 oz (approx. 15.3 g) Dimensions: 15/16" × 2" × 5/8" (approx. 2.4 × 5.1 × 1.6 cm) Included: Protective case If a CO Warning Occurs: Follow the MY-CO Operations Manual and your aircraft's applicable procedures. Manufacturer instructions include turning off cabin heat, increasing fresh-air ventilation, advising ATC as appropriate and landing as soon as practical.