Feature:1. LCD DISPLAY: The carbon dioxide detector is equipped with a backlit LCD screen, which is very convenient when working at night or in any dark place2. HIGH ACCURACY SENSOR: High sensitivity carbon dioxide monitor, with high accuracy, fast instantaneous response characteristics3. ALARM MODE: Carbon dioxide meter can set the upper and lower alarm thresholds. When the measurement is above or below the set threshold, the red background light on the screen will keep on and the measurement value will blink4. VARIOUS TEST: Air quality detector can detect indoor CO2 content, temperature, humidity, useful and practical5. APPLICABLE SCENARIO: Digital CO2 monitor can be used for air detection, agricultural cultivation, production and storage, material processingSpecification:Item Type: Carbon Dioxide DetectorProduct Model: JMS12CBattery: 3.7V lithium battery(700mAh)Display: VA LCD displayCarbon Dioxide Detection Principle: Non dispersive infrared(NDIR)CO2 Detection Range: 400~5000(ppm)Temperature Detection Range: 0~45Temperature Detection Accuracy: 1Humidity Detection Range: 0-100 PercentHumidity Detection Accuracy: 1%.Package List:1 x Carbon Dioxide Detector1 x Charging Cable1 x User Manual