Protmex 4 in 1 CO Detector CO2 Monitor, Carbon Monoxide Detector CO CO2 Humidity Temperature Sensor Monitor with Alarm, Air Quality Monitor Indoor Meter for Homes, Car, Travel Battery Powered

【4-IN-1 Air Quality Monitor】The multifunctional 4-in-1 air quality monitor can accurately detect the current air C.O2 C.O concentration, temperature and humidity, which C.O range is 0~500PPM, C.O2 concentration range is 400~5000PPM [±(50PPM + 5%)], and temperature range is 32~122°F (±2.7°F) / 0~50°C (±1.5°C), humidity range is 20~80%RH.

Let you understand the air quality more clearly and protect the health of you and your family. Can be used on a table or hung on the wall.

【High Precision Air Quality Detector】The air quality monitor is equipped with high-precision reliability sensors to ensure its accuracy. The rechargeable multifunctional air quality detector has a built-in 2000mAh battery, which can last for up to 60h after being fully charged, and the gas detector is equipped with a Type-C cable, which can fully meet your needs for its working time.

【Customized C.O and C.O.2 Alarm】The multifunctional air quality detector displays 3-level indicators based on C.O and C.O2 concentration. Its alarm function can remind you of the presence of C.O or C.O2, helping you protect yourself in time. C.O default alarm range: 150~500PPM, C.O2 default alarm range: 1500~5000PPM.You can also double-click the "function button" of the gas detector to customize the alarm thresholds for C.O and C.O2 concentrations.

【Exquisite and Portable】The gas detector adopts wall-mounted and vertical designs, and the bottom can be placed freely, so you can easily place the air quality detector in indoor places such as living rooms, bedrooms, kitchens, etc. to measure C.O,C.O2, temperature and humidity. Indoor air quality detector are also safety guards for travel and outdoors, designed for use in RVs, boats, planes, trucks, cars, camping tents, stove heaters and other confined spaces.

【Easy to Use】 No complicated settings are required, the air quality monitor can be used right after startup, suitable for all people. 1. Long press "ON/OFF" button to turn on/off co detector device. 2. Short press "+", change °F to ℃. 3. long press "+" to turn on/off buzzer.