Indoor Detector Carbon Dioxide Detector Monitor Air Quality Tester 400-5000PPM Temperature Humidity Meter with Alarm NDIR Sensor for Home, Office, Car - MESTEK CO2

• ✅【HIGH-PRECISION CO2 SENSOR】This multifunctional air quality monitor adopts non-dispersive infrared sensor (NDIR), which has high measurement accuracy, sensitive response, the resolution can reach 1 ppm, and the measurement range can reach 400 to 5000 ppm. it can accurately detect the current CO2 concentration, temperature, and humidity in the air, and help you understand indoor air quality at a glance ✅【SUPERIOR PERFORMANCE】automatic calibration without adjustment. Screen and sound dual alarm settings, It will alarm you when the detected CO2 concentration is beyond the safe value you customized. Three-color LCD indicator, ultra-clear VA reverse display screen, one-key backlight. There is a ventilation net on the back, which can automatically dissipate heat without operation. The button operation is simple, suitable for various life scenes ✅【PORTABLE DESIGN】The instrument is small in size and easy to carry. The packaging is high-grade, very suitable as a gift for friends. 1500mAH rechargeable lithium battery, 10 hours long battery life, and low battery reminder mode ✅【EASY TO USE】the back bracket and hanging buckle are convenient to place the detector on any level surface or hang it up to the wall for easy viewing. Suitable for houses/apartments, schools/libraries, offices, hospitals, public institutions, associations, basements and other places ✅【WORRY-FREE QUALITY】24h quick reply, 2 months unconditional return, 24 months warranty. If you are not 100% satisfied with the product, please contact us and we will try our best to solve any problems until you are satisfied, Weight: 0.41005980732 Pounds, Manufacturer: MESTEK