NEW $43 Carbon Monoxide Detector Rechargeable

Updated August 22, 2026

TOPTES OT-139 Portable Carbon Monoxide Detector, 15-Day Standby, Rechargeable Mini CO Monitor with Lanyard for Travel & Camping, Handheld CO Meter with Audible & Visual Alerts, 0-1000ppm - Orange Carbon Monoxide Detector: The OT-139 is a handheld carbon monoxide detector designed for long-term monitoring of carbon monoxide concentrations in the air. It can detect CO levels from 0 to 1000 PPM and is equipped with a high-precision sensor that responds in just 0.3S, providing timely protection for your safety Long Standby Time: The OT-139 travel CO monitor operates efficiently in standby mode, conserving power effectively. It provides continuous usage for over 15 days (360 hours) and supports Type-C charging, eliminating the hassle of buying batteries. Convenient and ready for use at home, during travel, or while camping Portable Design: This CO meter portable features a compact and lightweight design, weighing only 60g, making it easy to carry and reducing your travel burden. It also comes with a stand and lanyard, perfectly suited for various environments and placement needs, making it an ideal companion for home and travel Smart Alerts and Easy Operation: When CO levels reach the alarm threshold, the breathing light turns red, a flame icon appears, and an alarm sounds, providing clear alerts. In standby mode, a green breathing light flashes to show normal operation. The three simple buttons are intuitive and easy to use, with no learning curve. Please note that the sensor is located inside the ventilation holes above the bracket.

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