Co Guardian Aero Remote Mount Co Detector 451-201 75-26

The Guardian Avionics CO Guardian Aero 451-201 is a compact remote-mount carbon monoxide (CO) detector for cockpit installation. Manufacturer part number 75-26.

Designed to install behind the instrument panel, the unit uses an internal fan for sensing and provides audible and visual CO warnings. A test/reset switch and external mounting bracket are included. A separate remote annunciator light is required and is not included.

• 14/28 VDC input power
• 85 dB variable-pitch audible alarm
• Amber warning indication for 50–99 ppm CO after a 3–5 minute exposure period
• Red warning indication and immediate alarm for CO levels above 99 ppm
• Built-in temperature-compensation circuit and shielding intended to reduce electromagnetic interference
• Approximate dimensions: 85 × 57 × 38 mm

For installation instructions and applicable documentation, consult the manufacturer’s Aero 451-201 product page and the Guardian Avionics downloads page. Verify installation requirements, annunciator selection, and regulatory acceptability with appropriately qualified maintenance personnel before installation.