Safe-T-Alert FX-4 Carbon Monoxide Alarm – 2-Pack
$179.99 $161.99
Weight | 1.2 lbs |
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FX-4 Carbon Monoxide Alarm – 2-Pack
Marine Use – Low Voltage Hard Wired Alarm. Replaces your CO alarms that are over 5 years old. No Bags. No Tags. Full 5-Year service life, longer than CO Sentinel CMD-4M alarms. CMD-4M and CMD-3M that have reached end of life.
Features:
- Conforms To ANSI / UL STD 2034 – Marine
- Meets ABYC A-24. NMMA Listed Component
- Most Reliable
- Boats DC electrical system or marine grade batteries supply power to the alarm
- No missing or dead batteries to replace
- Proven Sensing Technology
- Prevents nuisance alarms which could lead to confusion and disconnected detectors
- Advanced Technology
- Alarm Mute button with advanced technology that silences alarm while boat is ventilated
- Rapid recovery sensor resets when silenced or reactivates alarm if dangerous levels of CO remain
- Loud. 85 dB alarm alerts you to CO danger
- Case Size: 2.5”W x 3.5”H x 1.25”D


⚓ Smooth Sailing Shipping
Enjoy FREE standard shipping on most orders over $250 within the continental U.S. (excl. heavy/oversized/hazardous items).
We ship via UPS, FedEx, and USPS . Orders are processed in 1–2 business days with typical delivery in 1–5 business days .
🧭 Track The Voyage
You’ll receive tracking info by email once your order ships. If your package is marked “delivered” but not received, please wait 48 hours then reach out to our team.
🛟 Hassle-Free Returns & Exchanges
Returns accepted within 30 days of delivery. Items must be unused and in original packaging.
- Mistaken or damaged cargo? We’ll handle return shipping.
- Changed your course? Return shipping is on you.
- Report defects or damage within 7 days for a free exchange.
💰 Anchor Your Refund
Refunds go back to your original payment method within 5–7 business days after inspection.
📨 Contact the Crew
Questions about your order? Drop anchor at sales@marineelec.com .