Will this detect propane gas? Lookin to install in my travel trailer

no, you will need a separate detector for that. LP gas is detected near the floor of a RV. Carbon Monoxide rises and is detected near the ceiling. My Travel Trailer had a carbon monoxide detector near the bed room on the wall near the ceiling, a LP detector in the kitchen near the floor and a smoke detector on the ceiling between the kitchen and living area.

This detector cannot be used if temperatures are below 40f or above 100f. what detectors are available that can be used below 40f and above 100f?

Thank you for your question. Our alarms are manufactured to be used in the home, in living areas. Most homes would be inconsistent with temperatures below 40 or higher than 100 degrees. If you're using this in a camper/trailer etc- you should keep it in your home when the camper/trailer is in storage not being used. Consistent extreme temps can affect the sensors, components & battery life.

is this detector certified for use in rv's ?

I see RV's use unconditioned CO detectors that aren't temperature controlled. I wouldn't use it in an RV.

Can I use it as a portable co detector? Going on a trip from one hotel to another and never mounting it

It is battery operated so I don't see why you can't take it with you

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First Alert Battery Carbon Monoxide Alarm

First Alert Battery Carbon Monoxide Alarm

Product ID: 14168170

Details

Alarm
Visual
Brand
First Alert
Color
White
Global Trade Identification Number
Item Weight
6.24 ounces
Material
Carbon

⚡Electrochemical CO sensor for ultra-accurate detection

🔒Tamper-resistant locking pin for secure battery access

🔕Dual silence modes to mute alarms & low battery chirps

¥10653

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Description

🚨 Stay ahead of danger with silent precision—because peace of mind never goes out of style.

TAMPER PROOF DESIGN - Locking pin prevents unauthorized battery removal—ideal for rentals, dorms, and hotels.
CUSTOMIZABLE SILENCE - Two silence features let you pause alarms or low battery chirps—control safety without the noise.
CODE READY COMPLIANCE - Meets UL2034, NFPA 720 & 101 standards, ensuring your space is up to code and protected.
PRECISION SAFETY TECH - State-of-the-art electrochemical sensor ensures the fastest, most reliable CO detection.
HASSLE FREE INSTALLATION - Includes all mounting hardware and a hinged cover for battery changes without removal.

The First Alert Battery Carbon Monoxide Alarm (Model CO250B) features an advanced electrochemical sensor for the most accurate CO detection available. Designed for residential and institutional use, it includes dual silence functions to mute alarms and low battery chirps, a tamper-resistant locking pin, and comes with a 9V battery and mounting hardware. Compact and code-compliant, it’s perfect for apartments, dorms, and hotels, delivering reliable early warning with easy installation and maintenance.

Specifications

ASIN	B0039QEV4S
Alarm	Visual
Best Sellers Rank	#83,092 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #45 in Carbon Monoxide Detectors
Brand	First Alert
Built-In Media	Electrical & Heating;Rough Electrical;electrical-timers
Color	White
Customer Reviews	4.7 4.7 out of 5 stars (2,088)
Enclosure Material	Carbon
Global Trade Identification Number	00029054003928
Item Dimensions D x W x H	1.6"D x 4.25"W x 4.25"H
Item Highlight	CO250B
Item Type Name	Single Gas Detector, Co, Audible, Visual, 9 V
Item Weight	6.24 ounces
Manufacturer	First Alert
Manufacturer Warranty Description	7 Year Limited Warranty
Mfr Part Number	CO250B
Model Number	CO250B
Number of Items	1
Power Source	Battery Powered
Product Style	1 Pack
Sensor Type	Electrochemical
UPC	029054003928
Unit Count	1 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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¥10653

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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