



🛡️ Stay ahead of danger with smart, silent protection.
The Universal Security Instruments MCD305SB is a cutting-edge carbon monoxide alarm featuring a 10-year tamper-proof sealed battery, an electrochemical sensor for accurate detection, and a digital display for real-time CO levels. With an 85 dB audible alert and a compact design, it offers reliable, long-lasting protection backed by over 50 years of safety expertise.







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