• Advanced semiconductor
sensing technology
• Instant test/reset feature
• Self-diagnosing circuitry
• Power and alarm light indicators
• Emergency alarm
• Loud 85 dB alarm pattern
• No batteries or replacement sensor required
• Available in 120 V AC plug-in or hardwire
• Model SD531 comes with
standard and octagon mounting plates
• 5-year limited warranty
• ULC listed, CSA approved

Constantly monitors the air to measure CO levels!

Model   Mfg.
No.        No.          Description
SD530  CO800        Plug-In
SD531  C0810        Hardwire