Carbon Monoxide Detectors Portable Temperature Detector/Humidity Sensor/Air Quality Meter Smoke CO Gas Monitor [3 in 1] Alarm for Home Bedroom Office in-car Camping Indoor Outdoor

SKU: GW40.0007

Q
Can I need to buy extra battery for this carbon monoxide detectors?
Answer Question
A
No, you don't need to buy battery, this 3in1 carbon monoxide detector is built-in high capacity 2400mAh battery, it can Continue working 90 hours with full power.