About this item

• HIGHEST QUALITY, most accurate electrochemical co sensor technology
• CONVENIENT, end of life chirping signal
• HELPFUL, 2 silence features that silence both alarm and low-battery chirp
• FEATURES, 9-Volt Battery and all necessary mounting hardware
• Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety
• Electrochemical CO Sensor is the most accurate technology available
• Two Silence Features Silence Low Battery Chirp For up to 8 Hours