Protect your RV, motorhome, or camper from dangerous carbon monoxide with the First Alert Battery-Operated Carbon Monoxide Detector, model 1039885. Also identified as model CO250RVA, this alarm is specifically designed and approved for recreational vehicle applications.
The detector uses an advanced electrochemical carbon monoxide sensor to monitor the surrounding air for elevated CO levels. Carbon monoxide is an invisible and odorless gas that can be produced by generators, furnaces, water heaters, cooking appliances, vehicle exhaust, and other fuel-burning equipment commonly used in or around recreational vehicles.
When dangerous carbon monoxide levels are detected, the alarm activates a loud 85-decibel horn to alert occupants. A flashing red LED provides a visible indication during an alarm condition and also confirms that the detector is receiving battery power.
The alarm operates using one replaceable 9V alkaline battery, allowing it to provide continuous monitoring without requiring an electrical outlet or hardwired connection. Battery operation also keeps the detector working when shore power or generator power is unavailable.
A full-function test and silence button allows users to check the alarm’s operation and temporarily silence the horn when appropriate. The low-battery silence feature can temporarily quiet the low-battery chirp while the battery is being replaced.
Its compact surface-mount design makes it suitable for installation inside RVs, motorhomes, travel trailers, fifth wheels, and campers. Installation and placement should always follow the included manufacturer instructions and applicable recreational vehicle safety requirements.
Key Features
Specifically designed for RV and recreational vehicle applications
Detects dangerous carbon monoxide levels
Advanced electrochemical carbon monoxide sensor
Loud 85-decibel warning horn
Battery-operated design requires no hardwiring
Powered by one replaceable 9V alkaline battery
Battery included
Full-function test and silence button
Alarm silence feature
Low-battery warning and silence feature
Red LED power and alarm indicator
Compact surface-mount design
Suitable for RVs, motorhomes, travel trailers, fifth wheels, and campers
Meets applicable recreational vehicle carbon monoxide alarm requirements
Specifications
Brand: First Alert
Product Number: 1039885
Model: CO250RVA
Product Type: Carbon Monoxide Detector
Recommended Application: Recreational Vehicles
Power Source: Battery Operated
Battery Type: One 9V Alkaline Battery
Battery Included: Yes
Sensor Type: Electrochemical
Alarm Sound Level: 85 dB
Test Button: Yes
Silence Feature: Yes
Low-Battery Warning: Yes
LED Indicator: Yes, Red
Digital Display: No
Hardwired: No
Installation Type: Surface Mount
Color: White
Important Information
This detector is designed to detect carbon monoxide only. It does not detect smoke, fire, propane, natural gas, or other combustible gases. It should not replace required smoke alarms or propane and combustible-gas detectors inside a recreational vehicle.

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