Product description Koabbit Combination Gas and Carbon Monoxide Detectors 2-in-1 Combination Gas and Carbon Monoxide Detectorplug-and-playDual sensors are used9V battery backup functionDigital display and alarm Package Includes Combination gas and carbon monoxide detector Instruction manual Easy to install Plug in the power supply, after 60 seconds of preheating, a green light is displayed to indicate normal operation. 9V backup battery function design When the device encounters a power outage, the 9V battery backup function plays a very big role in continuing to supply power to the device so that it can continue to operate. Applications Model KH522 Power supply Plug-in Battery backup 9v Alarm Current <120 (mA) Operating Temperature -20°C – 50°C (°C) Moisture Determination Range 15%-90% RH Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.3 out of 5 stars 2,229 4.3 out of 5 stars 2,229 4.4 out of 5 stars 539 4.3 out of 5 stars 352 4.1 out of 5 stars 1,160 Price $26.99$26.99 $44.99$44.99 $23.39$23.39 $39.99$39.99 $29.99$29.99 carbon monoxide detector ✓ ✓ no data no data no data gas detector & alarm no data no data ✓ ✓ no data gas and carbon monoxide detector no data no data no data no data ✓ Plug in ✓ ✓ ✓ ✓ ✓ 【Koabbit Combination Gas & Carbon Monoxide Detectors】Plug and play, easy to install and easy to read.【High Sensitivity Sensors】The gas and carbon monoxide detector contains a catalytic combustion sensor and an electrochemical sensor, both of which are highly sensitive and accurate, allowing you to detect conditions in a timely manner.【LCD Display & 85 High Volume Alarm】When the combustible gas or carbon monoxide gas reaches a certain level, the gas detector will display the gas concentration value and sound an alarm, allowing you to quickly determine and make the right choice.【9V Battery Backup 】A 9V battery backup can be installed to avoid the hassle of power outages.【Combustible Gas Detection Range】LPG(Methane), natural gas, coal gas, gas fuel, artificial gas, liquefied petroleum gas, liquefied natural gas etc.【Power Saving Design】: the display will turn off automatically when no dangerous gas is detected.Tips:Package does not include 9V battery
