3 in 1 CO2 Meter Thermometer Hygrometer Digital Portable Gas Leak Detector

Record mode: manual measurement, immediate measurement Record storage: 12700 Response time: 1 second Carbon dioxide measurement scope: 0~9999PPM Accuracy: ±70ppm ±3% readings (0~5000) Resolution: 1PPM Temperature measurement scope: -10~70℃ (14~158℉) Temperature measurement accuracy: ±0.3℃ (10~55℃), Others are ±1.2℃ Humidity measurement scope: 0%RH~99.9%RH Resolution ratio: 0.1%RH Accuracy: ±3% (10~90%) Power supply: 3.7V battery inside Adapter Input: 100-240V, 50/60Hz, 0.4A Adapter Output: 5V-1000mA Multiple-function tester for testing carbon dioxide concentration, temperature and humidity. Color large LCD screen. 12700 data logging memory. 1000mA large capacity lithium battery inside, the battery can be repeated charging. Stable and reliable. Simple and easy to operate. Convenient to carry. Durable in use. Used for environmental quality detection in industrial production, hotels and department stores, offices and meeting rooms, libraries, warehouses, hospitals and sites